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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: cDuDKd7bPsDVUNRR8X1N6/zZgCpeqSRSTGboR6KfO+2hWKEJvwvIA1R7LB8bwq4fh6JbYRLv8VH8KLBNc2V8YgzcMmfbd2AGL+drxxbXba+TNNWIgxyJu35GTRFikvPslSQ4uZW8/aUuInLE9T56Ka3WkNAsFAp2CV1CclD6L50= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 014261ac-d8e0-4a1e-478a-08d58157f077 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Mar 2018 22:33:30.7476 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2SPR01MB06 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Liam Beguin [ Upstream commit 9a1c779e6b06855e41099caa6f15b3b584dfa88c ] This patch forces the frambuffer size to be aligned on kernel pages. During the board startup, the splash screed did appear; the "ts_test" program or our application were not able to start. The following error message was reported: error: failed to map framebuffer device to memory. LinuxFB: driver cannot connect The issue was discovered, on the LPC32xx platform, during the migration of the LCD definition from the board file to the device tree. Signed-off-by: Liam Beguin Signed-off-by: Sylvain Lemieux Cc: Vladimir Zapolskiy Cc: Russell King Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Sasha Levin --- drivers/video/fbdev/amba-clcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clc= d.c index 6ad23bd3523a..7fd2f3f7ef7c 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -757,8 +757,8 @@ static int clcdfb_of_dma_setup(struct clcd_fb *fb) if (err) return err; =20 - framesize =3D fb->panel->mode.xres * fb->panel->mode.yres * - fb->panel->bpp / 8; + framesize =3D PAGE_ALIGN(fb->panel->mode.xres * fb->panel->mode.yres * + fb->panel->bpp / 8); fb->fb.screen_base =3D dma_alloc_coherent(&fb->dev->dev, framesize, &dma, GFP_KERNEL); if (!fb->fb.screen_base) --=20 2.14.1