diff options
Diffstat (limited to 'drivers/video/fbdev/omap2/dss/dsi.c')
-rw-r--r-- | drivers/video/fbdev/omap2/dss/dsi.c | 659 |
1 files changed, 240 insertions, 419 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dsi.c b/drivers/video/fbdev/omap2/dss/dsi.c index 0793bc67a27..73af3515946 100644 --- a/drivers/video/fbdev/omap2/dss/dsi.c +++ b/drivers/video/fbdev/omap2/dss/dsi.c @@ -219,6 +219,10 @@ static void dsi_display_uninit_dispc(struct platform_device *dsidev, static int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel); +/* DSI PLL HSDIV indices */ +#define HSDIV_DISPC 0 +#define HSDIV_DSI 1 + #define DSI_MAX_NR_ISRS 2 #define DSI_MAX_NR_LANES 5 @@ -271,6 +275,7 @@ struct dsi_isr_tables { struct dsi_clk_calc_ctx { struct platform_device *dsidev; + struct dss_pll *pll; /* inputs */ @@ -280,13 +285,18 @@ struct dsi_clk_calc_ctx { /* outputs */ - struct dsi_clock_info dsi_cinfo; + struct dss_pll_clock_info dsi_cinfo; struct dispc_clock_info dispc_cinfo; struct omap_video_timings dispc_vm; struct omap_dss_dsi_videomode_timings dsi_vm; }; +struct dsi_lp_clock_info { + unsigned long lp_clk; + u16 lp_clk_div; +}; + struct dsi_data { struct platform_device *pdev; void __iomem *proto_base; @@ -300,12 +310,14 @@ struct dsi_data { bool is_enabled; struct clk *dss_clk; - struct clk *sys_clk; struct dispc_clock_info user_dispc_cinfo; - struct dsi_clock_info user_dsi_cinfo; + struct dss_pll_clock_info user_dsi_cinfo; + + struct dsi_lp_clock_info user_lp_cinfo; + struct dsi_lp_clock_info current_lp_cinfo; - struct dsi_clock_info current_cinfo; + struct dss_pll pll; bool vdds_dsi_enabled; struct regulator *vdds_dsi_reg; @@ -321,8 +333,6 @@ struct dsi_data { struct mutex lock; struct semaphore bus_lock; - unsigned pll_locked; - spinlock_t irq_lock; struct dsi_isr_tables isr_tables; /* space for a copy used by the interrupt handler */ @@ -347,7 +357,7 @@ struct dsi_data { unsigned long cache_req_pck; unsigned long cache_clk_freq; - struct dsi_clock_info cache_cinfo; + struct dss_pll_clock_info cache_cinfo; u32 errors; spinlock_t errors_lock; @@ -362,11 +372,6 @@ struct dsi_data { spinlock_t irq_stats_lock; struct dsi_irq_stats irq_stats; #endif - /* DSI PLL Parameter Ranges */ - unsigned long regm_max, regn_max; - unsigned long regm_dispc_max, regm_dsi_max; - unsigned long fint_min, fint_max; - unsigned long lpdiv_max; unsigned num_lanes_supported; unsigned line_buffer_size; @@ -412,7 +417,7 @@ static inline struct platform_device *dsi_get_dsidev_from_dssdev(struct omap_dss return to_platform_device(dssdev->dev); } -struct platform_device *dsi_get_dsidev_from_id(int module) +static struct platform_device *dsi_get_dsidev_from_id(int module) { struct omap_dss_device *out; enum omap_dss_output_id id; @@ -1134,7 +1139,7 @@ static u32 dsi_get_errors(struct platform_device *dsidev) return e; } -int dsi_runtime_get(struct platform_device *dsidev) +static int dsi_runtime_get(struct platform_device *dsidev) { int r; struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); @@ -1146,7 +1151,7 @@ int dsi_runtime_get(struct platform_device *dsidev) return r < 0 ? r : 0; } -void dsi_runtime_put(struct platform_device *dsidev) +static void dsi_runtime_put(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int r; @@ -1188,23 +1193,6 @@ static int dsi_regulator_init(struct platform_device *dsidev) return 0; } -/* source clock for DSI PLL. this could also be PCLKFREE */ -static inline void dsi_enable_pll_clock(struct platform_device *dsidev, - bool enable) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - - if (enable) - clk_prepare_enable(dsi->sys_clk); - else - clk_disable_unprepare(dsi->sys_clk); - - if (enable && dsi->pll_locked) { - if (wait_for_bit_change(dsidev, DSI_PLL_STATUS, 1, 1) != 1) - DSSERR("cannot lock PLL when enabling clocks\n"); - } -} - static void _dsi_print_reset_status(struct platform_device *dsidev) { u32 l; @@ -1256,25 +1244,25 @@ static inline int dsi_if_enable(struct platform_device *dsidev, bool enable) return 0; } -unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev) +static unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - return dsi->current_cinfo.dsi_pll_hsdiv_dispc_clk; + return dsi->pll.cinfo.clkout[HSDIV_DISPC]; } static unsigned long dsi_get_pll_hsdiv_dsi_rate(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - return dsi->current_cinfo.dsi_pll_hsdiv_dsi_clk; + return dsi->pll.cinfo.clkout[HSDIV_DSI]; } static unsigned long dsi_get_txbyteclkhs(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - return dsi->current_cinfo.clkin4ddr / 16; + return dsi->pll.cinfo.clkdco / 16; } static unsigned long dsi_fclk_rate(struct platform_device *dsidev) @@ -1293,10 +1281,10 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev) return r; } -static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo, - unsigned long lp_clk_min, unsigned long lp_clk_max) +static int dsi_lp_clock_calc(unsigned long dsi_fclk, + unsigned long lp_clk_min, unsigned long lp_clk_max, + struct dsi_lp_clock_info *lp_cinfo) { - unsigned long dsi_fclk = cinfo->dsi_pll_hsdiv_dsi_clk; unsigned lp_clk_div; unsigned long lp_clk; @@ -1306,8 +1294,8 @@ static int dsi_lp_clock_calc(struct dsi_clock_info *cinfo, if (lp_clk < lp_clk_min || lp_clk > lp_clk_max) return -EINVAL; - cinfo->lp_clk_div = lp_clk_div; - cinfo->lp_clk = lp_clk; + lp_cinfo->lp_clk_div = lp_clk_div; + lp_cinfo->lp_clk = lp_clk; return 0; } @@ -1318,10 +1306,12 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev) unsigned long dsi_fclk; unsigned lp_clk_div; unsigned long lp_clk; + unsigned lpdiv_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_LPDIV); + - lp_clk_div = dsi->user_dsi_cinfo.lp_clk_div; + lp_clk_div = dsi->user_lp_cinfo.lp_clk_div; - if (lp_clk_div == 0 || lp_clk_div > dsi->lpdiv_max) + if (lp_clk_div == 0 || lp_clk_div > lpdiv_max) return -EINVAL; dsi_fclk = dsi_fclk_rate(dsidev); @@ -1329,8 +1319,8 @@ static int dsi_set_lp_clk_divisor(struct platform_device *dsidev) lp_clk = dsi_fclk / 2 / lp_clk_div; DSSDBG("LP_CLK_DIV %u, LP_CLK %lu\n", lp_clk_div, lp_clk); - dsi->current_cinfo.lp_clk = lp_clk; - dsi->current_cinfo.lp_clk_div = lp_clk_div; + dsi->current_lp_cinfo.lp_clk = lp_clk; + dsi->current_lp_cinfo.lp_clk_div = lp_clk_div; /* LP_CLK_DIVISOR */ REG_FLD_MOD(dsidev, DSI_CLK_CTRL, lp_clk_div, 12, 0); @@ -1391,286 +1381,33 @@ static int dsi_pll_power(struct platform_device *dsidev, return 0; } -unsigned long dsi_get_pll_clkin(struct platform_device *dsidev) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - return clk_get_rate(dsi->sys_clk); -} - -bool dsi_hsdiv_calc(struct platform_device *dsidev, unsigned long pll, - unsigned long out_min, dsi_hsdiv_calc_func func, void *data) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - int regm, regm_start, regm_stop; - unsigned long out_max; - unsigned long out; - - out_min = out_min ? out_min : 1; - out_max = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK); - - regm_start = max(DIV_ROUND_UP(pll, out_max), 1ul); - regm_stop = min(pll / out_min, dsi->regm_dispc_max); - - for (regm = regm_start; regm <= regm_stop; ++regm) { - out = pll / regm; - - if (func(regm, out, data)) - return true; - } - - return false; -} - -bool dsi_pll_calc(struct platform_device *dsidev, unsigned long clkin, - unsigned long pll_min, unsigned long pll_max, - dsi_pll_calc_func func, void *data) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - int regn, regn_start, regn_stop; - int regm, regm_start, regm_stop; - unsigned long fint, pll; - const unsigned long pll_hw_max = 1800000000; - unsigned long fint_hw_min, fint_hw_max; - - fint_hw_min = dsi->fint_min; - fint_hw_max = dsi->fint_max; - regn_start = max(DIV_ROUND_UP(clkin, fint_hw_max), 1ul); - regn_stop = min(clkin / fint_hw_min, dsi->regn_max); - - pll_max = pll_max ? pll_max : ULONG_MAX; - - for (regn = regn_start; regn <= regn_stop; ++regn) { - fint = clkin / regn; - - regm_start = max(DIV_ROUND_UP(DIV_ROUND_UP(pll_min, fint), 2), - 1ul); - regm_stop = min3(pll_max / fint / 2, - pll_hw_max / fint / 2, - dsi->regm_max); - - for (regm = regm_start; regm <= regm_stop; ++regm) { - pll = 2 * regm * fint; - - if (func(regn, regm, fint, pll, data)) - return true; - } - } - - return false; -} - -/* calculate clock rates using dividers in cinfo */ -static int dsi_calc_clock_rates(struct platform_device *dsidev, - struct dsi_clock_info *cinfo) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - - if (cinfo->regn == 0 || cinfo->regn > dsi->regn_max) - return -EINVAL; - - if (cinfo->regm == 0 || cinfo->regm > dsi->regm_max) - return -EINVAL; - - if (cinfo->regm_dispc > dsi->regm_dispc_max) - return -EINVAL; - - if (cinfo->regm_dsi > dsi->regm_dsi_max) - return -EINVAL; - - cinfo->clkin = clk_get_rate(dsi->sys_clk); - cinfo->fint = cinfo->clkin / cinfo->regn; - - if (cinfo->fint > dsi->fint_max || cinfo->fint < dsi->fint_min) - return -EINVAL; - - cinfo->clkin4ddr = 2 * cinfo->regm * cinfo->fint; - - if (cinfo->clkin4ddr > 1800 * 1000 * 1000) - return -EINVAL; - - if (cinfo->regm_dispc > 0) - cinfo->dsi_pll_hsdiv_dispc_clk = - cinfo->clkin4ddr / cinfo->regm_dispc; - else - cinfo->dsi_pll_hsdiv_dispc_clk = 0; - - if (cinfo->regm_dsi > 0) - cinfo->dsi_pll_hsdiv_dsi_clk = - cinfo->clkin4ddr / cinfo->regm_dsi; - else - cinfo->dsi_pll_hsdiv_dsi_clk = 0; - - return 0; -} - -static void dsi_pll_calc_dsi_fck(struct dsi_clock_info *cinfo) +static void dsi_pll_calc_dsi_fck(struct dss_pll_clock_info *cinfo) { unsigned long max_dsi_fck; max_dsi_fck = dss_feat_get_param_max(FEAT_PARAM_DSI_FCK); - cinfo->regm_dsi = DIV_ROUND_UP(cinfo->clkin4ddr, max_dsi_fck); - cinfo->dsi_pll_hsdiv_dsi_clk = cinfo->clkin4ddr / cinfo->regm_dsi; + cinfo->mX[HSDIV_DSI] = DIV_ROUND_UP(cinfo->clkdco, max_dsi_fck); + cinfo->clkout[HSDIV_DSI] = cinfo->clkdco / cinfo->mX[HSDIV_DSI]; } -int dsi_pll_set_clock_div(struct platform_device *dsidev, - struct dsi_clock_info *cinfo) +static int dsi_pll_enable(struct dss_pll *pll) { - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + struct dsi_data *dsi = container_of(pll, struct dsi_data, pll); + struct platform_device *dsidev = dsi->pdev; int r = 0; - u32 l; - int f = 0; - u8 regn_start, regn_end, regm_start, regm_end; - u8 regm_dispc_start, regm_dispc_end, regm_dsi_start, regm_dsi_end; - - DSSDBG("DSI PLL clock config starts"); - - dsi->current_cinfo.clkin = cinfo->clkin; - dsi->current_cinfo.fint = cinfo->fint; - dsi->current_cinfo.clkin4ddr = cinfo->clkin4ddr; - dsi->current_cinfo.dsi_pll_hsdiv_dispc_clk = - cinfo->dsi_pll_hsdiv_dispc_clk; - dsi->current_cinfo.dsi_pll_hsdiv_dsi_clk = - cinfo->dsi_pll_hsdiv_dsi_clk; - - dsi->current_cinfo.regn = cinfo->regn; - dsi->current_cinfo.regm = cinfo->regm; - dsi->current_cinfo.regm_dispc = cinfo->regm_dispc; - dsi->current_cinfo.regm_dsi = cinfo->regm_dsi; - - DSSDBG("DSI Fint %ld\n", cinfo->fint); - - DSSDBG("clkin rate %ld\n", cinfo->clkin); - - /* DSIPHY == CLKIN4DDR */ - DSSDBG("CLKIN4DDR = 2 * %d / %d * %lu = %lu\n", - cinfo->regm, - cinfo->regn, - cinfo->clkin, - cinfo->clkin4ddr); - - DSSDBG("Data rate on 1 DSI lane %ld Mbps\n", - cinfo->clkin4ddr / 1000 / 1000 / 2); - - DSSDBG("Clock lane freq %ld Hz\n", cinfo->clkin4ddr / 4); - - DSSDBG("regm_dispc = %d, %s (%s) = %lu\n", cinfo->regm_dispc, - dss_get_generic_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC), - dss_feat_get_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC), - cinfo->dsi_pll_hsdiv_dispc_clk); - DSSDBG("regm_dsi = %d, %s (%s) = %lu\n", cinfo->regm_dsi, - dss_get_generic_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI), - dss_feat_get_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI), - cinfo->dsi_pll_hsdiv_dsi_clk); - - dss_feat_get_reg_field(FEAT_REG_DSIPLL_REGN, ®n_start, ®n_end); - dss_feat_get_reg_field(FEAT_REG_DSIPLL_REGM, ®m_start, ®m_end); - dss_feat_get_reg_field(FEAT_REG_DSIPLL_REGM_DISPC, ®m_dispc_start, - ®m_dispc_end); - dss_feat_get_reg_field(FEAT_REG_DSIPLL_REGM_DSI, ®m_dsi_start, - ®m_dsi_end); - - /* DSI_PLL_AUTOMODE = manual */ - REG_FLD_MOD(dsidev, DSI_PLL_CONTROL, 0, 0, 0); - - l = dsi_read_reg(dsidev, DSI_PLL_CONFIGURATION1); - l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */ - /* DSI_PLL_REGN */ - l = FLD_MOD(l, cinfo->regn - 1, regn_start, regn_end); - /* DSI_PLL_REGM */ - l = FLD_MOD(l, cinfo->regm, regm_start, regm_end); - /* DSI_CLOCK_DIV */ - l = FLD_MOD(l, cinfo->regm_dispc > 0 ? cinfo->regm_dispc - 1 : 0, - regm_dispc_start, regm_dispc_end); - /* DSIPROTO_CLOCK_DIV */ - l = FLD_MOD(l, cinfo->regm_dsi > 0 ? cinfo->regm_dsi - 1 : 0, - regm_dsi_start, regm_dsi_end); - dsi_write_reg(dsidev, DSI_PLL_CONFIGURATION1, l); - - BUG_ON(cinfo->fint < dsi->fint_min || cinfo->fint > dsi->fint_max); - - l = dsi_read_reg(dsidev, DSI_PLL_CONFIGURATION2); - - if (dss_has_feature(FEAT_DSI_PLL_FREQSEL)) { - f = cinfo->fint < 1000000 ? 0x3 : - cinfo->fint < 1250000 ? 0x4 : - cinfo->fint < 1500000 ? 0x5 : - cinfo->fint < 1750000 ? 0x6 : - 0x7; - - l = FLD_MOD(l, f, 4, 1); /* DSI_PLL_FREQSEL */ - } else if (dss_has_feature(FEAT_DSI_PLL_SELFREQDCO)) { - f = cinfo->clkin4ddr < 1000000000 ? 0x2 : 0x4; - - l = FLD_MOD(l, f, 3, 1); /* PLL_SELFREQDCO */ - } - - l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ - l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */ - l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */ - if (dss_has_feature(FEAT_DSI_PLL_REFSEL)) - l = FLD_MOD(l, 3, 22, 21); /* REF_SYSCLK = sysclk */ - dsi_write_reg(dsidev, DSI_PLL_CONFIGURATION2, l); - - REG_FLD_MOD(dsidev, DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */ - - if (wait_for_bit_change(dsidev, DSI_PLL_GO, 0, 0) != 0) { - DSSERR("dsi pll go bit not going down.\n"); - r = -EIO; - goto err; - } - - if (wait_for_bit_change(dsidev, DSI_PLL_STATUS, 1, 1) != 1) { - DSSERR("cannot lock PLL\n"); - r = -EIO; - goto err; - } - - dsi->pll_locked = 1; - - l = dsi_read_reg(dsidev, DSI_PLL_CONFIGURATION2); - l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */ - l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */ - l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */ - l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */ - l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */ - l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */ - l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ - l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */ - l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */ - l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */ - l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */ - l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */ - l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */ - l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */ - dsi_write_reg(dsidev, DSI_PLL_CONFIGURATION2, l); - - DSSDBG("PLL config done\n"); -err: - return r; -} - -int dsi_pll_init(struct platform_device *dsidev, bool enable_hsclk, - bool enable_hsdiv) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - int r = 0; - enum dsi_pll_power_state pwstate; DSSDBG("PLL init\n"); - /* - * It seems that on many OMAPs we need to enable both to have a - * functional HSDivider. - */ - enable_hsclk = enable_hsdiv = true; - r = dsi_regulator_init(dsidev); if (r) return r; - dsi_enable_pll_clock(dsidev, 1); + r = dsi_runtime_get(dsidev); + if (r) + return r; + /* * Note: SCP CLK is not required on OMAP3, but it is required on OMAP4. */ @@ -1697,16 +1434,7 @@ int dsi_pll_init(struct platform_device *dsidev, bool enable_hsclk, * fill the whole display. No idea about this */ dispc_pck_free_enable(0); - if (enable_hsclk && enable_hsdiv) - pwstate = DSI_PLL_POWER_ON_ALL; - else if (enable_hsclk) - pwstate = DSI_PLL_POWER_ON_HSCLK; - else if (enable_hsdiv) - pwstate = DSI_PLL_POWER_ON_DIV; - else - pwstate = DSI_PLL_POWER_OFF; - - r = dsi_pll_power(dsidev, pwstate); + r = dsi_pll_power(dsidev, DSI_PLL_POWER_ON_ALL); if (r) goto err1; @@ -1721,15 +1449,14 @@ err1: } err0: dsi_disable_scp_clk(dsidev); - dsi_enable_pll_clock(dsidev, 0); + dsi_runtime_put(dsidev); return r; } -void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes) +static void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - dsi->pll_locked = 0; dsi_pll_power(dsidev, DSI_PLL_POWER_OFF); if (disconnect_lanes) { WARN_ON(!dsi->vdds_dsi_enabled); @@ -1738,18 +1465,27 @@ void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes) } dsi_disable_scp_clk(dsidev); - dsi_enable_pll_clock(dsidev, 0); + dsi_runtime_put(dsidev); DSSDBG("PLL uninit done\n"); } +static void dsi_pll_disable(struct dss_pll *pll) +{ + struct dsi_data *dsi = container_of(pll, struct dsi_data, pll); + struct platform_device *dsidev = dsi->pdev; + + dsi_pll_uninit(dsidev, true); +} + static void dsi_dump_dsidev_clocks(struct platform_device *dsidev, struct seq_file *s) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - struct dsi_clock_info *cinfo = &dsi->current_cinfo; + struct dss_pll_clock_info *cinfo = &dsi->pll.cinfo; enum omap_dss_clk_source dispc_clk_src, dsi_clk_src; int dsi_module = dsi->module_id; + struct dss_pll *pll = &dsi->pll; dispc_clk_src = dss_get_dispc_clk_source(); dsi_clk_src = dss_get_dsi_clk_source(dsi_module); @@ -1759,28 +1495,28 @@ static void dsi_dump_dsidev_clocks(struct platform_device *dsidev, seq_printf(s, "- DSI%d PLL -\n", dsi_module + 1); - seq_printf(s, "dsi pll clkin\t%lu\n", cinfo->clkin); + seq_printf(s, "dsi pll clkin\t%lu\n", clk_get_rate(pll->clkin)); - seq_printf(s, "Fint\t\t%-16luregn %u\n", cinfo->fint, cinfo->regn); + seq_printf(s, "Fint\t\t%-16lun %u\n", cinfo->fint, cinfo->n); - seq_printf(s, "CLKIN4DDR\t%-16luregm %u\n", - cinfo->clkin4ddr, cinfo->regm); + seq_printf(s, "CLKIN4DDR\t%-16lum %u\n", + cinfo->clkdco, cinfo->m); - seq_printf(s, "DSI_PLL_HSDIV_DISPC (%s)\t%-16luregm_dispc %u\t(%s)\n", + seq_printf(s, "DSI_PLL_HSDIV_DISPC (%s)\t%-16lum_dispc %u\t(%s)\n", dss_feat_get_clk_source_name(dsi_module == 0 ? OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC : OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC), - cinfo->dsi_pll_hsdiv_dispc_clk, - cinfo->regm_dispc, + cinfo->clkout[HSDIV_DISPC], + cinfo->mX[HSDIV_DISPC], dispc_clk_src == OMAP_DSS_CLK_SRC_FCK ? "off" : "on"); - seq_printf(s, "DSI_PLL_HSDIV_DSI (%s)\t%-16luregm_dsi %u\t(%s)\n", + seq_printf(s, "DSI_PLL_HSDIV_DSI (%s)\t%-16lum_dsi %u\t(%s)\n", dss_feat_get_clk_source_name(dsi_module == 0 ? OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI : OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI), - cinfo->dsi_pll_hsdiv_dsi_clk, - cinfo->regm_dsi, + cinfo->clkout[HSDIV_DSI], + cinfo->mX[HSDIV_DSI], dsi_clk_src == OMAP_DSS_CLK_SRC_FCK ? "off" : "on"); @@ -1793,11 +1529,11 @@ static void dsi_dump_dsidev_clocks(struct platform_device *dsidev, seq_printf(s, "DSI_FCLK\t%lu\n", dsi_fclk_rate(dsidev)); seq_printf(s, "DDR_CLK\t\t%lu\n", - cinfo->clkin4ddr / 4); + cinfo->clkdco / 4); seq_printf(s, "TxByteClkHS\t%lu\n", dsi_get_txbyteclkhs(dsidev)); - seq_printf(s, "LP_CLK\t\t%lu\n", cinfo->lp_clk); + seq_printf(s, "LP_CLK\t\t%lu\n", dsi->current_lp_cinfo.lp_clk); dsi_runtime_put(dsidev); } @@ -2132,7 +1868,7 @@ static inline unsigned ns2ddr(struct platform_device *dsidev, unsigned ns) struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); /* convert time in ns to ddr ticks, rounding up */ - unsigned long ddr_clk = dsi->current_cinfo.clkin4ddr / 4; + unsigned long ddr_clk = dsi->pll.cinfo.clkdco / 4; return (ns * (ddr_clk / 1000 / 1000) + 999) / 1000; } @@ -2140,7 +1876,7 @@ static inline unsigned ddr2ns(struct platform_device *dsidev, unsigned ddr) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - unsigned long ddr_clk = dsi->current_cinfo.clkin4ddr / 4; + unsigned long ddr_clk = dsi->pll.cinfo.clkdco / 4; return ddr * 1000 * 1000 / (ddr_clk / 1000); } @@ -3730,7 +3466,7 @@ static void dsi_config_cmd_mode_interleaving(struct platform_device *dsidev) struct omap_video_timings *timings = &dsi->timings; int bpp = dsi_get_pixel_size(dsi->pix_fmt); int ndl = dsi->num_lanes_used - 1; - int dsi_fclk_hsdiv = dsi->user_dsi_cinfo.regm_dsi + 1; + int dsi_fclk_hsdiv = dsi->user_dsi_cinfo.mX[HSDIV_DSI] + 1; int hsa_interleave_hs = 0, hsa_interleave_lp = 0; int hfp_interleave_hs = 0, hfp_interleave_lp = 0; int hbp_interleave_hs = 0, hbp_interleave_lp = 0; @@ -4441,18 +4177,12 @@ static void dsi_display_uninit_dispc(struct platform_device *dsidev, static int dsi_configure_dsi_clocks(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - struct dsi_clock_info cinfo; + struct dss_pll_clock_info cinfo; int r; cinfo = dsi->user_dsi_cinfo; - r = dsi_calc_clock_rates(dsidev, &cinfo); - if (r) { - DSSERR("Failed to calc dsi clocks\n"); - return r; - } - - r = dsi_pll_set_clock_div(dsidev, &cinfo); + r = dss_pll_set_config(&dsi->pll, &cinfo); if (r) { DSSERR("Failed to set dsi clocks\n"); return r; @@ -4466,7 +4196,7 @@ static int dsi_display_init_dsi(struct platform_device *dsidev) struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int r; - r = dsi_pll_init(dsidev, true, true); + r = dss_pll_enable(&dsi->pll); if (r) goto err0; @@ -4510,7 +4240,7 @@ err3: err2: dss_select_dsi_clk_source(dsi->module_id, OMAP_DSS_CLK_SRC_FCK); err1: - dsi_pll_uninit(dsidev, true); + dss_pll_disable(&dsi->pll); err0: return r; } @@ -4551,8 +4281,6 @@ static int dsi_display_enable(struct omap_dss_device *dssdev) if (r) goto err_get_dsi; - dsi_enable_pll_clock(dsidev, 1); - _dsi_initialize_irq(dsidev); r = dsi_display_init_dsi(dsidev); @@ -4564,7 +4292,6 @@ static int dsi_display_enable(struct omap_dss_device *dssdev) return 0; err_init_dsi: - dsi_enable_pll_clock(dsidev, 0); dsi_runtime_put(dsidev); err_get_dsi: mutex_unlock(&dsi->lock); @@ -4592,7 +4319,6 @@ static void dsi_display_disable(struct omap_dss_device *dssdev, dsi_display_uninit_dsi(dsidev, disconnect_lanes, enter_ulps); dsi_runtime_put(dsidev); - dsi_enable_pll_clock(dsidev, 0); mutex_unlock(&dsi->lock); } @@ -4713,29 +4439,30 @@ static bool dsi_cm_calc_dispc_cb(int lckd, int pckd, unsigned long lck, return true; } -static bool dsi_cm_calc_hsdiv_cb(int regm_dispc, unsigned long dispc, +static bool dsi_cm_calc_hsdiv_cb(int m_dispc, unsigned long dispc, void *data) { struct dsi_clk_calc_ctx *ctx = data; - ctx->dsi_cinfo.regm_dispc = regm_dispc; - ctx->dsi_cinfo.dsi_pll_hsdiv_dispc_clk = dispc; + ctx->dsi_cinfo.mX[HSDIV_DISPC] = m_dispc; + ctx->dsi_cinfo.clkout[HSDIV_DISPC] = dispc; return dispc_div_calc(dispc, ctx->req_pck_min, ctx->req_pck_max, dsi_cm_calc_dispc_cb, ctx); } -static bool dsi_cm_calc_pll_cb(int regn, int regm, unsigned long fint, - unsigned long pll, void *data) +static bool dsi_cm_calc_pll_cb(int n, int m, unsigned long fint, + unsigned long clkdco, void *data) { struct dsi_clk_calc_ctx *ctx = data; - ctx->dsi_cinfo.regn = regn; - ctx->dsi_cinfo.regm = regm; + ctx->dsi_cinfo.n = n; + ctx->dsi_cinfo.m = m; ctx->dsi_cinfo.fint = fint; - ctx->dsi_cinfo.clkin4ddr = pll; + ctx->dsi_cinfo.clkdco = clkdco; - return dsi_hsdiv_calc(ctx->dsidev, pll, ctx->req_pck_min, + return dss_pll_hsdiv_calc(ctx->pll, clkdco, ctx->req_pck_min, + dss_feat_get_param_max(FEAT_PARAM_DSS_FCK), dsi_cm_calc_hsdiv_cb, ctx); } @@ -4748,7 +4475,7 @@ static bool dsi_cm_calc(struct dsi_data *dsi, unsigned long pll_min, pll_max; unsigned long pck, txbyteclk; - clkin = clk_get_rate(dsi->sys_clk); + clkin = clk_get_rate(dsi->pll.clkin); bitspp = dsi_get_pixel_size(cfg->pixel_format); ndl = dsi->num_lanes_used - 1; @@ -4764,16 +4491,16 @@ static bool dsi_cm_calc(struct dsi_data *dsi, memset(ctx, 0, sizeof(*ctx)); ctx->dsidev = dsi->pdev; + ctx->pll = &dsi->pll; ctx->config = cfg; ctx->req_pck_min = pck; ctx->req_pck_nom = pck; ctx->req_pck_max = pck * 3 / 2; - ctx->dsi_cinfo.clkin = clkin; pll_min = max(cfg->hs_clk_min * 4, txbyteclk * 4 * 4); pll_max = cfg->hs_clk_max * 4; - return dsi_pll_calc(dsi->pdev, clkin, + return dss_pll_calc(ctx->pll, clkin, pll_min, pll_max, dsi_cm_calc_pll_cb, ctx); } @@ -4784,7 +4511,7 @@ static bool dsi_vm_calc_blanking(struct dsi_clk_calc_ctx *ctx) const struct omap_dss_dsi_config *cfg = ctx->config; int bitspp = dsi_get_pixel_size(cfg->pixel_format); int ndl = dsi->num_lanes_used - 1; - unsigned long hsclk = ctx->dsi_cinfo.clkin4ddr / 4; + unsigned long hsclk = ctx->dsi_cinfo.clkdco / 4; unsigned long byteclk = hsclk / 4; unsigned long dispc_pck, req_pck_min, req_pck_nom, req_pck_max; @@ -4999,14 +4726,14 @@ static bool dsi_vm_calc_dispc_cb(int lckd, int pckd, unsigned long lck, return true; } -static bool dsi_vm_calc_hsdiv_cb(int regm_dispc, unsigned long dispc, +static bool dsi_vm_calc_hsdiv_cb(int m_dispc, unsigned long dispc, void *data) { struct dsi_clk_calc_ctx *ctx = data; unsigned long pck_max; - ctx->dsi_cinfo.regm_dispc = regm_dispc; - ctx->dsi_cinfo.dsi_pll_hsdiv_dispc_clk = dispc; + ctx->dsi_cinfo.mX[HSDIV_DISPC] = m_dispc; + ctx->dsi_cinfo.clkout[HSDIV_DISPC] = dispc; /* * In burst mode we can let the dispc pck be arbitrarily high, but it @@ -5022,17 +4749,18 @@ static bool dsi_vm_calc_hsdiv_cb(int regm_dispc, unsigned long dispc, dsi_vm_calc_dispc_cb, ctx); } -static bool dsi_vm_calc_pll_cb(int regn, int regm, unsigned long fint, - unsigned long pll, void *data) +static bool dsi_vm_calc_pll_cb(int n, int m, unsigned long fint, + unsigned long clkdco, void *data) { struct dsi_clk_calc_ctx *ctx = data; - ctx->dsi_cinfo.regn = regn; - ctx->dsi_cinfo.regm = regm; + ctx->dsi_cinfo.n = n; + ctx->dsi_cinfo.m = m; ctx->dsi_cinfo.fint = fint; - ctx->dsi_cinfo.clkin4ddr = pll; + ctx->dsi_cinfo.clkdco = clkdco; - return dsi_hsdiv_calc(ctx->dsidev, pll, ctx->req_pck_min, + return dss_pll_hsdiv_calc(ctx->pll, clkdco, ctx->req_pck_min, + dss_feat_get_param_max(FEAT_PARAM_DSS_FCK), dsi_vm_calc_hsdiv_cb, ctx); } @@ -5048,14 +4776,13 @@ static bool dsi_vm_calc(struct dsi_data *dsi, int bitspp = dsi_get_pixel_size(cfg->pixel_format); unsigned long byteclk_min; - clkin = clk_get_rate(dsi->sys_clk); + clkin = clk_get_rate(dsi->pll.clkin); memset(ctx, 0, sizeof(*ctx)); ctx->dsidev = dsi->pdev; + ctx->pll = &dsi->pll; ctx->config = cfg; - ctx->dsi_cinfo.clkin = clkin; - /* these limits should come from the panel driver */ ctx->req_pck_min = t->pixelclock - 1000; ctx->req_pck_nom = t->pixelclock; @@ -5074,7 +4801,7 @@ static bool dsi_vm_calc(struct dsi_data *dsi, pll_max = byteclk_max * 4 * 4; } - return dsi_pll_calc(dsi->pdev, clkin, + return dss_pll_calc(ctx->pll, clkin, pll_min, pll_max, dsi_vm_calc_pll_cb, ctx); } @@ -5106,8 +4833,8 @@ static int dsi_set_config(struct omap_dss_device *dssdev, dsi_pll_calc_dsi_fck(&ctx.dsi_cinfo); - r = dsi_lp_clock_calc(&ctx.dsi_cinfo, config->lp_clk_min, - config->lp_clk_max); + r = dsi_lp_clock_calc(ctx.dsi_cinfo.clkout[HSDIV_DSI], + config->lp_clk_min, config->lp_clk_max, &dsi->user_lp_cinfo); if (r) { DSSERR("failed to find suitable DSI LP clock settings\n"); goto err; @@ -5234,35 +4961,6 @@ static void dsi_release_vc(struct omap_dss_device *dssdev, int channel) } } -void dsi_wait_pll_hsdiv_dispc_active(struct platform_device *dsidev) -{ - if (wait_for_bit_change(dsidev, DSI_PLL_STATUS, 7, 1) != 1) - DSSERR("%s (%s) not active\n", - dss_get_generic_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC), - dss_feat_get_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC)); -} - -void dsi_wait_pll_hsdiv_dsi_active(struct platform_device *dsidev) -{ - if (wait_for_bit_change(dsidev, DSI_PLL_STATUS, 8, 1) != 1) - DSSERR("%s (%s) not active\n", - dss_get_generic_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI), - dss_feat_get_clk_source_name(OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI)); -} - -static void dsi_calc_clock_param_ranges(struct platform_device *dsidev) -{ - struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - - dsi->regn_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGN); - dsi->regm_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM); - dsi->regm_dispc_max = - dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM_DISPC); - dsi->regm_dsi_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_REGM_DSI); - dsi->fint_min = dss_feat_get_param_min(FEAT_PARAM_DSIPLL_FINT); - dsi->fint_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_FINT); - dsi->lpdiv_max = dss_feat_get_param_max(FEAT_PARAM_DSIPLL_LPDIV); -} static int dsi_get_clocks(struct platform_device *dsidev) { @@ -5277,14 +4975,6 @@ static int dsi_get_clocks(struct platform_device *dsidev) dsi->dss_clk = clk; - clk = devm_clk_get(&dsidev->dev, "sys_clk"); - if (IS_ERR(clk)) { - DSSERR("can't get sys_clk\n"); - return PTR_ERR(clk); - } - - dsi->sys_clk = clk; - return 0; } @@ -5453,6 +5143,135 @@ err: return r; } +static const struct dss_pll_ops dsi_pll_ops = { + .enable = dsi_pll_enable, + .disable = dsi_pll_disable, + .set_config = dss_pll_write_config_type_a, +}; + +static const struct dss_pll_hw dss_omap3_dsi_pll_hw = { + .n_max = (1 << 7) - 1, + .m_max = (1 << 11) - 1, + .mX_max = (1 << 4) - 1, + .fint_min = 750000, + .fint_max = 2100000, + .clkdco_low = 1000000000, + .clkdco_max = 1800000000, + + .n_msb = 7, + .n_lsb = 1, + .m_msb = 18, + .m_lsb = 8, + + .mX_msb[0] = 22, + .mX_lsb[0] = 19, + .mX_msb[1] = 26, + .mX_lsb[1] = 23, + + .has_stopmode = true, + .has_freqsel = true, + .has_selfreqdco = false, + .has_refsel = false, +}; + +static const struct dss_pll_hw dss_omap4_dsi_pll_hw = { + .n_max = (1 << 8) - 1, + .m_max = (1 << 12) - 1, + .mX_max = (1 << 5) - 1, + .fint_min = 500000, + .fint_max = 2500000, + .clkdco_low = 1000000000, + .clkdco_max = 1800000000, + + .n_msb = 8, + .n_lsb = 1, + .m_msb = 20, + .m_lsb = 9, + + .mX_msb[0] = 25, + .mX_lsb[0] = 21, + .mX_msb[1] = 30, + .mX_lsb[1] = 26, + + .has_stopmode = true, + .has_freqsel = false, + .has_selfreqdco = false, + .has_refsel = false, +}; + +static const struct dss_pll_hw dss_omap5_dsi_pll_hw = { + .n_max = (1 << 8) - 1, + .m_max = (1 << 12) - 1, + .mX_max = (1 << 5) - 1, + .fint_min = 150000, + .fint_max = 52000000, + .clkdco_low = 1000000000, + .clkdco_max = 1800000000, + + .n_msb = 8, + .n_lsb = 1, + .m_msb = 20, + .m_lsb = 9, + + .mX_msb[0] = 25, + .mX_lsb[0] = 21, + .mX_msb[1] = 30, + .mX_lsb[1] = 26, + + .has_stopmode = true, + .has_freqsel = false, + .has_selfreqdco = true, + .has_refsel = true, +}; + +static int dsi_init_pll_data(struct platform_device *dsidev) +{ + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + struct dss_pll *pll = &dsi->pll; + struct clk *clk; + int r; + + clk = devm_clk_get(&dsidev->dev, "sys_clk"); + if (IS_ERR(clk)) { + DSSERR("can't get sys_clk\n"); + return PTR_ERR(clk); + } + + pll->name = dsi->module_id == 0 ? "dsi0" : "dsi1"; + pll->clkin = clk; + pll->base = dsi->pll_base; + + switch (omapdss_get_version()) { + case OMAPDSS_VER_OMAP34xx_ES1: + case OMAPDSS_VER_OMAP34xx_ES3: + case OMAPDSS_VER_OMAP3630: + case OMAPDSS_VER_AM35xx: + pll->hw = &dss_omap3_dsi_pll_hw; + break; + + case OMAPDSS_VER_OMAP4430_ES1: + case OMAPDSS_VER_OMAP4430_ES2: + case OMAPDSS_VER_OMAP4: + pll->hw = &dss_omap4_dsi_pll_hw; + break; + + case OMAPDSS_VER_OMAP5: + pll->hw = &dss_omap5_dsi_pll_hw; + break; + + default: + return -ENODEV; + } + + pll->ops = &dsi_pll_ops; + + r = dss_pll_register(pll); + if (r) + return r; + + return 0; +} + /* DSI1 HW IP initialisation */ static int omap_dsihw_probe(struct platform_device *dsidev) { @@ -5598,12 +5417,12 @@ static int omap_dsihw_probe(struct platform_device *dsidev) dsi->vc[i].vc_id = 0; } - dsi_calc_clock_param_ranges(dsidev); - r = dsi_get_clocks(dsidev); if (r) return r; + dsi_init_pll_data(dsidev); + pm_runtime_enable(&dsidev->dev); r = dsi_runtime_get(dsidev); @@ -5672,6 +5491,8 @@ static int __exit omap_dsihw_remove(struct platform_device *dsidev) WARN_ON(dsi->scp_clk_refcount > 0); + dss_pll_unregister(&dsi->pll); + dsi_uninit_output(dsidev); pm_runtime_disable(&dsidev->dev); |