lkml.org 
[lkml]   [2016]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] ARM: dts: imx7d: fix LCDIF clock assignment
On Tue, Nov 22, 2016 at 10:42 PM, Stefan Agner <stefan@agner.ch> 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 <stefan@agner.ch>

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

\
 
 \ /
  Last update: 2016-11-24 00:10    [W:0.078 / U:0.972 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site