[PATCH RFC 8/8] HACK mmc: mxcmmc: enable clocks for the MPC512x
From: Gerhard Sittig <hidden>
Date: 2013-07-12 15:26:21
Also in:
linux-devicetree
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Ulf Hansson, Linus Torvalds
Q&D HACK to enable SD card support without correct COMMON_CLK support, best viewed with 'git diff -w -b', NOT acceptable for mainline (NAKed) Signed-off-by: Gerhard Sittig <redacted> --- drivers/mmc/host/mxcmmc.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-)
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index d503635..b9d21cc 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c@@ -1121,20 +1121,29 @@ static int mxcmci_probe(struct platform_device *pdev) host->res = r; host->irq = irq; - host->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); - if (IS_ERR(host->clk_ipg)) { - ret = PTR_ERR(host->clk_ipg); - goto out_iounmap; - } + if (!is_mpc512x_mmc(host)) { + host->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); + if (IS_ERR(host->clk_ipg)) { + ret = PTR_ERR(host->clk_ipg); + goto out_iounmap; + } - host->clk_per = devm_clk_get(&pdev->dev, "per"); - if (IS_ERR(host->clk_per)) { - ret = PTR_ERR(host->clk_per); - goto out_iounmap; + host->clk_per = devm_clk_get(&pdev->dev, "per"); + if (IS_ERR(host->clk_per)) { + ret = PTR_ERR(host->clk_per); + goto out_iounmap; + } + } else { + host->clk_per = devm_clk_get(&pdev->dev, "sdhc_clk"); + if (IS_ERR(host->clk_per)) { + ret = PTR_ERR(host->clk_per); + goto out_iounmap; + } } clk_prepare_enable(host->clk_per); - clk_prepare_enable(host->clk_ipg); + if (host->clk_ipg) + clk_prepare_enable(host->clk_ipg); mxcmci_softreset(host);
@@ -1204,7 +1213,8 @@ out_free_dma: dma_release_channel(host->dma); out_clk_put: clk_disable_unprepare(host->clk_per); - clk_disable_unprepare(host->clk_ipg); + if (host->clk_ipg) + clk_disable_unprepare(host->clk_ipg); out_iounmap: iounmap(host->base); out_free:
@@ -1236,7 +1246,8 @@ static int mxcmci_remove(struct platform_device *pdev) dma_release_channel(host->dma); clk_disable_unprepare(host->clk_per); - clk_disable_unprepare(host->clk_ipg); + if (host->clk_ipg) + clk_disable_unprepare(host->clk_ipg); release_mem_region(host->res->start, resource_size(host->res));
@@ -1255,7 +1266,8 @@ static int mxcmci_suspend(struct device *dev) if (mmc) ret = mmc_suspend_host(mmc); clk_disable_unprepare(host->clk_per); - clk_disable_unprepare(host->clk_ipg); + if (host->clk_ipg) + clk_disable_unprepare(host->clk_ipg); return ret; }
@@ -1267,7 +1279,8 @@ static int mxcmci_resume(struct device *dev) int ret = 0; clk_prepare_enable(host->clk_per); - clk_prepare_enable(host->clk_ipg); + if (host->clk_ipg) + clk_prepare_enable(host->clk_ipg); if (mmc) ret = mmc_resume_host(mmc);
--
1.7.10.4