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Wed, 20 Jul 2022 23:12:02 -0700 (PDT) Received: from genechen-System-Product-Name.richtek.com ([2402:7500:46a:8b75:f825:a44d:6d0d:6d6e]) by smtp.gmail.com with ESMTPSA id 13-20020a62170d000000b0052ba782f4cbsm744998pfx.7.2022.07.20.23.11.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jul 2022 23:12:01 -0700 (PDT) From: Gene Chen To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, gene_chen@richtek.com, cy_huang@richtek.com Subject: [PATCH v2 4/6] usb: typec: tcpci_rt1711h: Add initial phy setting Date: Thu, 21 Jul 2022 14:11:42 +0800 Message-Id: <20220721061144.35139-5-gene.chen.richtek@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220721061144.35139-1-gene.chen.richtek@gmail.com> References: <20220721061144.35139-1-gene.chen.richtek@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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 From: Gene Chen Add initial phy setting about phy dicard retry, rx filter deglitech time and BMC-encoded wait time Signed-off-by: Gene Chen --- drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index 52c9594e531d..e65b568959e9 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -18,6 +18,9 @@ #define RT1711H_VID 0x29CF #define RT1711H_PID 0x1711 +#define RT1711H_PHYCTRL1 0x80 +#define RT1711H_PHYCTRL2 0x81 + #define RT1711H_RTCTRL8 0x9B /* Autoidle timeout = (tout * 2 + 1) * 6.4ms */ @@ -105,8 +108,18 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata) return ret; /* dcSRC.DRP : 33% */ - return rt1711h_write16(chip, RT1711H_RTCTRL16, 330); + ret = rt1711h_write16(chip, RT1711H_RTCTRL16, 330); + if (ret < 0) + return ret; + + /* Enable phy discard retry, retry count 7, rx filter deglitech 100 us */ + ret = rt1711h_write8(chip, RT1711H_PHYCTRL1, 0xF1); + if (ret < 0) + return ret; + /* Decrease wait time of BMC-encoded 1 bit from 2.67us to 2.55us */ + /* wait time : (val * .4167) us */ + return rt1711h_write8(chip, RT1711H_PHYCTRL2, 62); } static int rt1711h_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata, -- 2.25.1