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To: Mark Brown Cc: Zhou Yanjie , robh+dt@kernel.org, krzk+dt@kernel.org, linux-spi@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, contact@artur-rojek.eu, dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com, rick.tyliu@ingenic.com, sernia.zhou@foxmail.com, zhenwenjin@gmail.com, reimu@sudomaker.com Message-Id: In-Reply-To: References: <1650032528-118220-1-git-send-email-zhouyanjie@wanyeetech.com> <1650032528-118220-2-git-send-email-zhouyanjie@wanyeetech.com> <61ZDAR.SD20HFTWMIBH3@crapouillou.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham 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 Hi, Le mar., avril 19 2022 at 18:00:41 +0100, Mark Brown=20 a =C3=A9crit : > On Sat, Apr 16, 2022 at 05:36:46PM +0100, Paul Cercueil wrote: >> Le sam., avril 16 2022 at 19:55:13 +0800, Zhou Yanjie >> > On 2022/4/15 =E4=B8=8B=E5=8D=8811:00, Paul Cercueil wrote: >=20 >> > > > - ctlr->num_chipselect =3D 2; >> > > > + ctlr->use_gpio_descriptors =3D true; >=20 >> > > I wonder if this should be set conditionally instead. Maybe set=20 >> it >> > > to =7F"true" if the "num-cs" property exists? >=20 >> > I'm not too sure, but it seems some other drivers like=20 >> "spi-sun6i.c", >> > "spi-stm32.c", "spi-s3c64xx.c", "spi-pic32.c", etc. set it >> > unconditionally. >=20 >> Ok, maybe Mark can enlighten us here. >=20 > use_gpio_descriptions is just selecting which version of the GPIO APIs > we should use if we're handling GPIOs rather than if we should handle > them. We've got one last driver using the numerical GPIO APIs, once > that one is converted we should just be able to drop the flag since > everything will be using descriptors. Thank you Mark. Cheers, -Paul