system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-21 02:39:51 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: exynos4-is: Request syscon only if ISP writeback is present

Browse source 
On FIMC variants which don't have writeback channel, there is no need to
access system registers. This patch makes the driver request sysreg
regmap conditionally depending on whether writeback is supported.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Tomasz Figa 2020-07-31 01:01:05 +02:00 committed by Mauro Carvalho Chehab
parent 40df2adca6
commit 55400d7745
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/media/platform/exynos4-is/fimc-core.c
View file

@ -954,9 +954,11 @@ static int fimc_probe(struct platform_device *pdev)
spin_lock_init(&fimc->slock);
mutex_init(&fimc->lock);
fimc->sysreg = fimc_get_sysreg_regmap(dev->of_node);
if (IS_ERR(fimc->sysreg))
return PTR_ERR(fimc->sysreg);
if (fimc->variant->has_isp_wb) {
fimc->sysreg = fimc_get_sysreg_regmap(dev->of_node);
if (IS_ERR(fimc->sysreg))
return PTR_ERR(fimc->sysreg);
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
fimc->regs = devm_ioremap_resource(dev, res);