Re: [PATCH] mmc: sdhci-of-arasan: Get quirks from device tree
From: Lars-Peter Clausen
Date: Mon Jul 27 2015 - 11:19:35 EST
On 07/27/2015 10:04 AM, Shawn Lin wrote:
This patch adds the interface to get quirks from dts, and
there is no need to assign different quirks by condition statement
of arasan IP version.
Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci-of-arasan.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index ef5a7d2..db07788 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -132,6 +132,7 @@ static SIMPLE_DEV_PM_OPS(sdhci_arasan_dev_pm_ops, sdhci_arasan_suspend,
static int sdhci_arasan_probe(struct platform_device *pdev)
{
int ret;
+ u32 quirktab[2];
struct clk *clk_xin;
struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
@@ -172,6 +173,12 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
goto clk_disable_all;
}
+ if (of_property_read_u32_array(pdev->dev.of_node,
+ "arasan,quirks", &quirktab[0], 2)) {
+ host->quirks |= quirktab[0];
+ host->quirks2 |= quirktab[1];
+ }
The quirks are part of the Linux internal API, making them part of the
public ABI is not necessarily the best idea. It means they become fixed, you
can't remove any quirk types, can't change any quirk type, nor can add new
quirk types.
- Lars
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