Commit e5f7e81e authored by Wolfram Sang's avatar Wolfram Sang Committed by Geert Uytterhoeven
Browse files

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: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20211110191610.5664-21-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent 079e83b9

drivers/mmc/host/renesas_sdhi_core.c

+5 −1
Original line number Diff line number Diff line
@@ -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));



	}