[PATCH 2/4] drm/exynos: fimd: Add support for FIMD versions without SHADOWCON register

Some platforms that can be supported with this driver have PRTCON register instead of SHADOWCON, which requires slightly different handling. This patch factors out all register shadow control code from the driver and adds a function to control register shadowing appropriately, depending on driver

[PATCH 2/4] drm/exynos: fimd: Add support for FIMD versions without SHADOWCON register

Some platforms that can be supported with this driver have PRTCON register instead of SHADOWCON, which requires slightly different handling. This patch factors out all register shadow control code from the driver and adds a function to control register shadowing appropriately, depending on driver