On Thu, Nov 19, 2015 at 07:35:57PM +0100, Geert Uytterhoeven wrote: > Hi, > > The SCI driver currently handles two clocks, an interface clock named > sci_ick and a functional clock named sci_fck. Studying the datasheets of > the SH and ARM SoCs that incorportate (H)SCI(F)([AB]) instances showed > (un)surprisingly that the hardware doesn't have a separate controllable > interface clock. > > All the platforms that declare an interface clock for the SCI set it to > the clock used as the SCI functional clock. The two clocks can thus be > merged on the driver side, which is what this patch series does. The > resulting clock is called "fck", and all H8/300, SH and ARM users (both > DT and non-DT) are fixed to name their SCI clocks appropriately. > > Support for the "sci_ick" name is kept in the sh-sci driver to ensure DT > backward compatibility, and support for the "peripheral_clk" clock to > not break SH platforms that don't declare device-specific SCI clocks. > The latter can be removed when all SH platforms will declare their SCI > clocks properly. > > This series serves as a preparatory clock cleanup for the SCI baud rate > generator clock support series. I decided to keep it separate as this > series has more stringent internal dependencies: > - The SH patches 2-3 depend on patch 1, > - The DT patches 4-15 depend on patch 1, > - Cleanup patch 16 depends on SH patch 2. > > Thanks for your comments! > > Changes compared to v1: > - Take over the patches from Laurent, > - Add Acked-by, > - Handle EPROBE_DEFER, > - Add missing patches to convert r8a7795 and h8300. > > Geert Uytterhoeven (2): > arm64: renesas: r8a7795 dtsi: Rename the serial port clock to fck > h8300: dts: Rename the serial port clock to fck > > Laurent Pinchart (14): > serial: sh-sci: Drop the interface clock > sh: Rename sci_ick and sci_fck clock to fck > sh: Remove sci_ick clock alias > ARM: shmobile: sh73a0 dtsi: Rename the serial port clock to fck > ARM: shmobile: r7s72100 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a73a4 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7740 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7778 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7779 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7790 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7791 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7793 dtsi: Rename the serial port clock to fck > ARM: shmobile: r8a7794 dtsi: Rename the serial port clock to fck > serial: sh-sci: Drop the sci_fck clock fallback I have marked the above shmobile patches as deferred pending the binding changes being accepted. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
