From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Mon, 5 Dec 2016 10:01:24 +0800 Subject: [PATCH] ARM: dts: imx7d: fix LCDIF clock assignment In-Reply-To: <7e4829f484f6c4425fc9d01bea1a094f@agner.ch> References: <20161123004204.10851-1-stefan@agner.ch> <7e4829f484f6c4425fc9d01bea1a094f@agner.ch> Message-ID: <20161205020123.GA2066@dragon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 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 > > > > Reviewed-by: Fabio Estevam > > 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 Shawn