From: Tomasz Figa <[email protected]> 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 <[email protected]> Signed-off-by: Jonathan Bakker <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Reviewed-by: Sylwester Nawrocki <[email protected]> --- Changes from v1: - Added R-b tags --- drivers/media/platform/exynos4-is/fimc-core.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/exynos4-is/fimc-core.c b/drivers/media/platform/exynos4-is/fimc-core.c index 2258f3bfc929..08d1f39a914c 100644 --- a/drivers/media/platform/exynos4-is/fimc-core.c +++ b/drivers/media/platform/exynos4-is/fimc-core.c @@ -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); -- 2.20.1
