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[92.233.226.227]) by smtp.googlemail.com with ESMTPSA id t1sm400914wre.32.2021.11.19.09.18.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Nov 2021 09:18:21 -0800 (PST) Subject: Re: [PATCH 3/6] nvmem: mtk-efuse: support minimum one byte access stride and granularity To: Chunfeng Yun , Rob Herring , Vinod Koul Cc: Matthias Brugger , Kishon Vijay Abraham I , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, Eddie Hung , Andrew-CT Chen , Yz Wu References: <20211107075646.4366-1-chunfeng.yun@mediatek.com> <20211107075646.4366-3-chunfeng.yun@mediatek.com> From: Srinivas Kandagatla Message-ID: <2ba27f8a-6d10-3a7a-45b2-dbe503c79d47@linaro.org> Date: Fri, 19 Nov 2021 17:18:19 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20211107075646.4366-3-chunfeng.yun@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211119_091824_186806_B6A13CD7 X-CRM114-Status: GOOD ( 20.59 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 07/11/2021 07:56, Chunfeng Yun wrote: > In order to support nvmem bits property, should support minimum 1 byte > read stride and minimum 1 byte read granularity at the same time. > > Signed-off-by: Chunfeng Yun Applied thanks, --srini > --- > drivers/nvmem/mtk-efuse.c | 13 +++++++------ > 1 file changed, 7 insertions(+), 6 deletions(-) > > diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c > index 6a537d959f14..e9a375dd84af 100644 > --- a/drivers/nvmem/mtk-efuse.c > +++ b/drivers/nvmem/mtk-efuse.c > @@ -19,11 +19,12 @@ static int mtk_reg_read(void *context, > unsigned int reg, void *_val, size_t bytes) > { > struct mtk_efuse_priv *priv = context; > - u32 *val = _val; > - int i = 0, words = bytes / 4; > + void __iomem *addr = priv->base + reg; > + u8 *val = _val; > + int i; > > - while (words--) > - *val++ = readl(priv->base + reg + (i++ * 4)); > + for (i = 0; i < bytes; i++, val++) > + *val = readb(addr + i); > > return 0; > } > @@ -45,8 +46,8 @@ static int mtk_efuse_probe(struct platform_device *pdev) > if (IS_ERR(priv->base)) > return PTR_ERR(priv->base); > > - econfig.stride = 4; > - econfig.word_size = 4; > + econfig.stride = 1; > + econfig.word_size = 1; > econfig.reg_read = mtk_reg_read; > econfig.size = resource_size(res); > econfig.priv = priv; > -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy