From patchwork Thu Jan 9 12:02:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 239306 List-Id: U-Boot discussion From: yamada.masahiro at socionext.com (Masahiro Yamada) Date: Thu, 9 Jan 2020 21:02:06 +0900 Subject: [PATCH] mtd: rawnand: denali_dt: make the core clock optional Message-ID: <20200109120206.18060-1-yamada.masahiro@socionext.com> The "nand_x" and "ecc" clocks are currently optional. Make the core clock optional in the same way. This will allow platforms with no clock driver support to use this driver. Signed-off-by: Masahiro Yamada --- drivers/mtd/nand/raw/denali_dt.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c index 0ce81324b90e..b1e14982c443 100644 --- a/drivers/mtd/nand/raw/denali_dt.c +++ b/drivers/mtd/nand/raw/denali_dt.c @@ -91,7 +91,7 @@ static int denali_dt_probe(struct udevice *dev) if (ret) ret = clk_get_by_index(dev, 0, &clk); if (ret) - return ret; + clk.dev = NULL; ret = clk_get_by_name(dev, "nand_x", &clk_x); if (ret) @@ -101,9 +101,11 @@ static int denali_dt_probe(struct udevice *dev) if (ret) clk_ecc.dev = NULL; - ret = clk_enable(&clk); - if (ret) - return ret; + if (clk.dev) { + ret = clk_enable(&clk); + if (ret) + return ret; + } if (clk_x.dev) { ret = clk_enable(&clk_x);