From ccec44cc910d1fa94690e0b9f07194be3421cb1a Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 29 Aug 2017 09:41:25 -0300 Subject: [PATCH] [media] smiapp: Make clock control optional The clock control is not explicitly controlled by the driver in two cases: ACPI based systems and when the clock is part of the power sequence of the camera module. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/smiapp/smiapp-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c index 009b5e2..fbd851b 100644 --- a/drivers/media/i2c/smiapp/smiapp-core.c +++ b/drivers/media/i2c/smiapp/smiapp-core.c @@ -2892,7 +2892,10 @@ static int smiapp_probe(struct i2c_client *client, } sensor->ext_clk = devm_clk_get(&client->dev, NULL); - if (IS_ERR(sensor->ext_clk)) { + if (PTR_ERR(sensor->ext_clk) == -ENOENT) { + dev_info(&client->dev, "no clock defined, continuing...\n"); + sensor->ext_clk = NULL; + } else if (IS_ERR(sensor->ext_clk)) { dev_err(&client->dev, "could not get clock (%ld)\n", PTR_ERR(sensor->ext_clk)); return -EPROBE_DEFER; -- 2.7.4