diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2021-11-10 20:16:09 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-11-19 11:32:39 +0100 |
| commit | e5f7e81ee430acb6d1fa9a6323fe645bd52e0b9c (patch) | |
| tree | 08d406090d6d7fcae051e0e56b5af2520dee5f5e /drivers/mmc/host/renesas_sdhi_core.c | |
| parent | 079e83b958a3c3d9c84e24b28478d57adc1cd7fe (diff) | |
| download | linux-e5f7e81ee430acb6d1fa9a6323fe645bd52e0b9c.tar.bz2 | |
mmc: renesas_sdhi: Parse DT for SDnH
If there is a SDnH clock provided in DT, let's use it instead of relying
on the fallback.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20211110191610.5664-21-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_core.c')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index 7f842fd306a3..2f5e22e539a3 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -921,6 +921,10 @@ int renesas_sdhi_probe(struct platform_device *pdev, if (IS_ERR(priv->clk)) return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk), "cannot get clock"); + priv->clkh = devm_clk_get_optional(&pdev->dev, "clkh"); + if (IS_ERR(priv->clkh)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->clkh), "cannot get clkh"); + /* * Some controllers provide a 2nd clock just to run the internal card * detection logic. Unfortunately, the existing driver architecture does @@ -959,7 +963,7 @@ int renesas_sdhi_probe(struct platform_device *pdev, dma_priv->dma_buswidth = of_data->dma_buswidth; host->bus_shift = of_data->bus_shift; /* Fallback for old DTs */ - if (of_data->sdhi_flags & SDHI_FLAG_NEED_CLKH_FALLBACK) + if (!priv->clkh && of_data->sdhi_flags & SDHI_FLAG_NEED_CLKH_FALLBACK) priv->clkh = clk_get_parent(clk_get_parent(priv->clk)); } |