diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/blackfin/ppi.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/platform/blackfin/ppi.c b/drivers/media/platform/blackfin/ppi.c index 90c4a936e3a..cff63e511e6 100644 --- a/drivers/media/platform/blackfin/ppi.c +++ b/drivers/media/platform/blackfin/ppi.c @@ -206,6 +206,20 @@ static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params) int dma_config, bytes_per_line; int hcount, hdelay, samples_per_line; +#ifdef CONFIG_PINCTRL + static const char * const pin_state[] = {"8bit", "16bit", "24bit"}; + struct pinctrl *pctrl; + struct pinctrl_state *pstate; + + if (params->dlen > 24 || params->dlen <= 0) + return -EINVAL; + pctrl = devm_pinctrl_get(ppi->dev); + pstate = pinctrl_lookup_state(pctrl, + pin_state[(params->dlen + 7) / 8 - 1]); + if (pinctrl_select_state(pctrl, pstate)) + return -EINVAL; +#endif + bytes_per_line = params->width * params->bpp / 8; /* convert parameters unit from pixels to samples */ hcount = params->width * params->bpp / params->dlen; @@ -316,10 +330,12 @@ struct ppi_if *ppi_create_instance(struct platform_device *pdev, if (!info || !info->pin_req) return NULL; +#ifndef CONFIG_PINCTRL if (peripheral_request_list(info->pin_req, KBUILD_MODNAME)) { dev_err(&pdev->dev, "request peripheral failed\n"); return NULL; } +#endif ppi = kzalloc(sizeof(*ppi), GFP_KERNEL); if (!ppi) { @@ -329,6 +345,7 @@ struct ppi_if *ppi_create_instance(struct platform_device *pdev, } ppi->ops = &ppi_ops; ppi->info = info; + ppi->dev = &pdev->dev; pr_info("ppi probe success\n"); return ppi; |