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[209.85.219.172]) by smtp.gmail.com with ESMTPSA id n8-20020ac85a08000000b002e06aa02021sm12770033qta.49.2022.03.15.00.52.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Mar 2022 00:52:33 -0700 (PDT) Received: by mail-yb1-f172.google.com with SMTP id t11so3941506ybi.6; Tue, 15 Mar 2022 00:52:33 -0700 (PDT) X-Received: by 2002:a25:bc8f:0:b0:628:8649:5c4b with SMTP id e15-20020a25bc8f000000b0062886495c4bmr21295331ybk.207.1647330753044; Tue, 15 Mar 2022 00:52:33 -0700 (PDT) MIME-Version: 1.0 References: <8d3c0cc370b0214244b01a64c588e5e506531716.1646683502.git.geert@linux-m68k.org> <20220314170539.17400f93@eldfell> <1f915fcc-1d95-99d1-c7b7-dc4e3b49e09f@linux-m68k.org> <20220315093250.71352a56@eldfell> In-Reply-To: From: Geert Uytterhoeven Date: Tue, 15 Mar 2022 08:52:21 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 05/10] drm/fourcc: Add DRM_FORMAT_C[124] To: Pekka Paalanen Cc: Finn Thain , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Javier Martinez Canillas , Sam Ravnborg , Helge Deller , Linux Fbdev development list , "Linux/m68k" , DRI Development , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 15, 2022 at 8:51 AM Geert Uytterhoeven wrote: > > Also, when drm_fourcc.h is describing pixel formats, it needs to > > consider only how a little-endian CPU accesses them. That's how pixel > > data in memory is described. Display hardware plays no part in that. > > It is the driver's job to expose the pixel formats that match display > > hardware behaviour. > > But if the "CPU format" does not match the "display support", s/support/format/ > all pixel data must be converted? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds