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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id r27-20020aa7989b000000b0052859441ad3sm1844207pfl.214.2022.07.21.07.32.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Jul 2022 07:32:23 -0700 (PDT) Sender: Guenter Roeck Message-ID: <3ed62aae-126c-dbc4-49d5-f2ecfbcacd5f@roeck-us.net> Date: Thu, 21 Jul 2022 07:32:21 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH v2 4/6] usb: typec: tcpci_rt1711h: Add initial phy setting Content-Language: en-US To: Gene Chen , 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 References: <20220721061144.35139-1-gene.chen.richtek@gmail.com> <20220721061144.35139-5-gene.chen.richtek@gmail.com> From: Guenter Roeck In-Reply-To: <20220721061144.35139-5-gene.chen.richtek@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 7/20/22 23:11, Gene Chen wrote: > 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 Reviewed-by: Guenter Roeck > --- > 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,