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| author |   Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com> | 2021-06-15 16:13:57 +0530 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2021-08-24 10:15:29 +0200 |
| commit | 5c7e468ab17fe9cc9ce94a6fdef635d5289a8095 (patch) | |
| tree | 81cdc8fc94a9498a764469a3e3ceb6f4611feb51 /drivers/mmc | |
| parent | mmc: sdhci-of-arasan: Modify data type of the clk_phase array (diff) | |
| download | linux-dev-5c7e468ab17fe9cc9ce94a6fdef635d5289a8095.tar.xz linux-dev-5c7e468ab17fe9cc9ce94a6fdef635d5289a8095.zip | |
mmc: arasan: Fix the issue in reading tap values from DT
'of_property_read_variable_u32_array' function returns number
of elements read on success. This patch updates the condition
check in the driver to overwrite the tap values from DT if exist.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1623753837-21035-8-git-send-email-manish.narani@xilinx.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-arasan.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index ba425b9563bf..737e2bfdedc2 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -1019,13 +1019,15 @@ static void arasan_dt_read_clk_phase(struct device *dev, struct device_node *np = dev->of_node; u32 clk_phase[2] = {0}; + int ret; /* * Read Tap Delay values from DT, if the DT does not contain the * Tap Values then use the pre-defined values. */ - if (of_property_read_variable_u32_array(np, prop, &clk_phase[0], - 2, 0)) { + ret = of_property_read_variable_u32_array(np, prop, &clk_phase[0], + 2, 0); + if (ret < 0) { dev_dbg(dev, "Using predefined clock phase for %s = %d %d\n", prop, clk_data->clk_phase_in[timing], clk_data->clk_phase_out[timing]); |