From: Khiem Nguyen <khiem.nguyen.xt@xxxxxxxxxxxxxxx> After the commit "a399dc9fc50 cpufreq: shmobile: Use generic platdev driver", will use cpufreq-dt-platdev driver to enable cpufreq-dt support. Hence, follow the implementation to support new R8A7795 SoC. Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@xxxxxxxxxxxxxxx> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> --- drivers/cpufreq/cpufreq-dt-platdev.c | 1 + 1 file changed, 1 insertion(+) This is identical to a patch posted by Khiem last year. At the time it was asked if using opp-v2 was the preferred approach. https://patchwork.kernel.org/patch/9054011/ An inspection of the current upstream kernel code seems to indicate that adding a binding as this patch does is compatibile with using opp-v2 and I plan to post DTS patches separately which make use of the opp-v2 bindings - they depend on this driver change to work. I have provided an integration patch with this patch, those DTS changes, and Renesas clock updates also depended on by the DTS changes. The result is working CPUFreq for the r8a7795 (R-Car H3) ES1.0. If this work is acceptable I plan to follow up with patches to enable CPUFreq on the r8a7796 (R-Car M3-W). https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git topic/r8a7795-cpufreq A description of steps taken to lightly exercise the above can be found here: http://elinux.org/Tests:R-CAR-GEN3-CPUFreq diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c index 096aea7fcb67..13b72f3c420b 100644 --- a/drivers/cpufreq/cpufreq-dt-platdev.c +++ b/drivers/cpufreq/cpufreq-dt-platdev.c @@ -67,6 +67,7 @@ static const struct of_device_id machines[] __initconst = { { .compatible = "renesas,r8a7792", }, { .compatible = "renesas,r8a7793", }, { .compatible = "renesas,r8a7794", }, + { .compatible = "renesas,r8a7795", }, { .compatible = "renesas,sh73a0", }, { .compatible = "rockchip,rk2928", }, -- 2.1.4
