diff options
Diffstat (limited to 'arch/arm/plat-samsung/adc.c')
-rw-r--r-- | arch/arm/plat-samsung/adc.c | 43 |
1 files changed, 32 insertions, 11 deletions
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index ee8deef1948..33ecd0c9f0c 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -41,6 +41,8 @@ enum s3c_cpu_type { TYPE_ADCV1, /* S3C24XX */ + TYPE_ADCV11, /* S3C2443 */ + TYPE_ADCV12, /* S3C2416, S3C2450 */ TYPE_ADCV2, /* S3C64XX, S5P64X0, S5PC100 */ TYPE_ADCV3, /* S5PV210, S5PC110, EXYNOS4210 */ }; @@ -98,13 +100,17 @@ static inline void s3c_adc_select(struct adc_device *adc, client->select_cb(client, 1); - con &= ~S3C2410_ADCCON_MUXMASK; + if (cpu == TYPE_ADCV1 || cpu == TYPE_ADCV2) + con &= ~S3C2410_ADCCON_MUXMASK; con &= ~S3C2410_ADCCON_STDBM; con &= ~S3C2410_ADCCON_STARTMASK; if (!client->is_ts) { if (cpu == TYPE_ADCV3) writel(client->channel & 0xf, adc->regs + S5P_ADCMUX); + else if (cpu == TYPE_ADCV11 || cpu == TYPE_ADCV12) + writel(client->channel & 0xf, + adc->regs + S3C2443_ADCMUX); else con |= S3C2410_ADCCON_SELMUX(client->channel); } @@ -293,13 +299,13 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) client->nr_samples--; - if (cpu != TYPE_ADCV1) { - /* S3C64XX/S5P ADC resolution is 12-bit */ - data0 &= 0xfff; - data1 &= 0xfff; - } else { + if (cpu == TYPE_ADCV1 || cpu == TYPE_ADCV11) { data0 &= 0x3ff; data1 &= 0x3ff; + } else { + /* S3C2416/S3C64XX/S5P ADC resolution is 12-bit */ + data0 &= 0xfff; + data1 &= 0xfff; } if (client->convert_cb) @@ -320,7 +326,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) } exit: - if (cpu != TYPE_ADCV1) { + if (cpu == TYPE_ADCV2 || cpu == TYPE_ADCV3) { /* Clear ADC interrupt */ writel(0, adc->regs + S3C64XX_ADCCLRINT); } @@ -332,6 +338,7 @@ static int s3c_adc_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct adc_device *adc; struct resource *regs; + enum s3c_cpu_type cpu = platform_get_device_id(pdev)->driver_data; int ret; unsigned tmp; @@ -394,10 +401,13 @@ static int s3c_adc_probe(struct platform_device *pdev) clk_enable(adc->clk); tmp = adc->prescale | S3C2410_ADCCON_PRSCEN; - if (platform_get_device_id(pdev)->driver_data != TYPE_ADCV1) { - /* Enable 12-bit ADC resolution */ + + /* Enable 12-bit ADC resolution */ + if (cpu == TYPE_ADCV12) + tmp |= S3C2416_ADCCON_RESSEL; + if (cpu == TYPE_ADCV2 || cpu == TYPE_ADCV3) tmp |= S3C64XX_ADCCON_RESSEL; - } + writel(tmp, adc->regs + S3C2410_ADCCON); dev_info(dev, "attached adc driver\n"); @@ -464,6 +474,7 @@ static int s3c_adc_resume(struct device *dev) struct platform_device *pdev = container_of(dev, struct platform_device, dev); struct adc_device *adc = platform_get_drvdata(pdev); + enum s3c_cpu_type cpu = platform_get_device_id(pdev)->driver_data; int ret; unsigned long tmp; @@ -474,9 +485,13 @@ static int s3c_adc_resume(struct device *dev) enable_irq(adc->irq); tmp = adc->prescale | S3C2410_ADCCON_PRSCEN; + /* Enable 12-bit ADC resolution */ - if (platform_get_device_id(pdev)->driver_data != TYPE_ADCV1) + if (cpu == TYPE_ADCV12) + tmp |= S3C2416_ADCCON_RESSEL; + if (cpu == TYPE_ADCV2 || cpu == TYPE_ADCV3) tmp |= S3C64XX_ADCCON_RESSEL; + writel(tmp, adc->regs + S3C2410_ADCCON); return 0; @@ -492,6 +507,12 @@ static struct platform_device_id s3c_adc_driver_ids[] = { .name = "s3c24xx-adc", .driver_data = TYPE_ADCV1, }, { + .name = "s3c2443-adc", + .driver_data = TYPE_ADCV11, + }, { + .name = "s3c2416-adc", + .driver_data = TYPE_ADCV12, + }, { .name = "s3c64xx-adc", .driver_data = TYPE_ADCV2, }, { |