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Tue, 03 Aug 2021 12:44:59 -0700 (PDT) Date: Wed, 4 Aug 2021 01:14:54 +0530 From: Raag Jadav To: Li Yang Cc: Shawn Guo , Rob Herring , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , lkml Subject: Re: [PATCH] arm64: dts: ls1046a: fix eeprom entries Message-ID: <20210803194454.GA9471@localhost> References: <1627927742-8675-1-git-send-email-raagjadav@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_124502_134366_F2AADC16 X-CRM114-Status: GOOD ( 26.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Aug 02, 2021 at 05:44:29PM -0500, Li Yang wrote: > On Mon, Aug 2, 2021 at 1:10 PM Raag Jadav wrote: > > > > ls1046afrwy and ls1046ardb boards have CAT24C04[1] and CAT24C05[2] > > eeproms respectively. Both are 4Kb (512 bytes) in size. > > These part names are from onsemi instead of atmel. Are there same > part names from atmel which are also compatible with the onsemi parts? The part names are different, but they are functionally compatible. > If we want to use onsemi only part names, probably we will need two > compatible strings with the first one from onsemi and the second from > atmel. Although the binding doesn't support onsemi prefix yet. Should I add it to the at24 binding document with atmel as a fallback? > > > Remove multi-address entries, as we have auto-rollover support > > in at24 driver. > > The device tree should describe hardware instead of matching how > driver deal with it. Is the board really using a single chip or > multiple chips here? Yes, both the boards have a single chip each. > > > > > [1] https://www.onsemi.com/pdf/datasheet/cat24c01-d.pdf > > [2] https://www.onsemi.com/pdf/datasheet/cat24c03-d.pdf > > > > Signed-off-by: Raag Jadav > > --- > > arch/arm64/boot/dts/freescale/fsl-ls1046a-frwy.dts | 8 +------- > > arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts | 7 +------ > > 2 files changed, 2 insertions(+), 13 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-frwy.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-frwy.dts > > index db3d303..83afe21 100644 > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-frwy.dts > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-frwy.dts > > @@ -83,15 +83,9 @@ > > }; > > > > eeprom@52 { > > - compatible = "atmel,24c512"; > > + compatible = "atmel,24c04"; > > reg = <0x52>; > > }; > > - > > - eeprom@53 { > > - compatible = "atmel,24c512"; > > - reg = <0x53>; > > - }; > > - > > }; > > }; > > }; > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts > > index 60acdf0..d220f98 100644 > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts > > @@ -59,14 +59,9 @@ > > }; > > > > eeprom@52 { > > - compatible = "atmel,24c512"; > > + compatible = "atmel,24c04"; > > reg = <0x52>; > > }; > > - > > - eeprom@53 { > > - compatible = "atmel,24c512"; > > - reg = <0x53>; > > - }; > > }; > > > > &i2c3 { > > -- > > 2.7.4 > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel