Subject: [PATCH] ARM: dts: imx7d: fix LCDIF clock assignment

From: [email-masked] (Shawn Guo)
Date: Mon, 5 Dec 2016 10:01:24 +0800

Hi Arnd, Olof,

On Sun, Dec 04, 2016 at 05:26:58PM -0800, Stefan Agner wrote:
> Hi Shawn
> 
> On 2016-11-23 15:02, Fabio Estevam wrote:
> > On Tue, Nov 22, 2016 at 10:42 PM, Stefan Agner <[email-masked]> wrote:
> >> The eLCDIF IP of the i.MX 7 SoC knows multiple clocks and lists them
> >> separately:
> >>
> >> Clock      Clock Root              Description
> >> apb_clk    MAIN_AXI_CLK_ROOT       AXI clock
> >> pix_clk    LCDIF_PIXEL_CLK_ROOT    Pixel clock
> >> ipg_clk_s  MAIN_AXI_CLK_ROOT       Peripheral access clock
> >>
> >> All of them are switched by a single gate, which is part of the
> >> IMX7D_LCDIF_PIXEL_ROOT_CLK clock. Hence using that clock also for
> >> the AXI bus clock (clock-name "axi") makes sure the gate gets
> >> enabled when accessing registers.
> >>
> >> There seem to be no separate AXI display clock, and the clock is
> >> optional. Hence remove the dummy clock.
> >>
> >> This fixes kernel freezes when starting the X-Server (which
> >> disables/re-enables the display controller).
> >>
> >> Signed-off-by: Stefan Agner <[email-masked]>
> > 
> > Reviewed-by: Fabio Estevam <[email-masked]>
> 
> Since this fixes a kernel freeze, is there a chance to get this still in
> 4.9?

Since we get one more week to the final 4.9, is it possible for you to
send this fix for 4.9 inclusion?  Thanks.

For the patch,

Acked-by: Shawn Guo <[email-masked]>

Shawn