RE: Re: [PATCH v2 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-24 Thread Richard Zhu
nel.org; dl-linux-imx ; > linux-arm-ker...@lists.infradead.org; linux-kernel@vger.kernel.org; > ker...@pengutronix.de > Subject: Re: [PATCH v2 1/3] dt-bindings: imx6q-pcie: add one regulator > used to power up pcie phy > Hi Richard, > > Am Mittwoch, dem 24.03.2021 um 13:34 +0800 schrieb

Re: [PATCH v2 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-24 Thread Lucas Stach
Hi Richard, Am Mittwoch, dem 24.03.2021 um 13:34 +0800 schrieb Richard Zhu: > Both 1.8v and 3.3v power supplies can be used by i.MX8MQ PCIe PHY. > In default, the PCIE_VPH voltage is suggested to be 1.8v refer to data > sheet. When PCIE_VPH is supplied by 3.3v in the HW schematic design, > the VRE

[PATCH v2 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-23 Thread Richard Zhu
Both 1.8v and 3.3v power supplies can be used by i.MX8MQ PCIe PHY. In default, the PCIE_VPH voltage is suggested to be 1.8v refer to data sheet. When PCIE_VPH is supplied by 3.3v in the HW schematic design, the VREG_BYPASS bits of GPR registers should be cleared from default value 1b'1 to 1b'0. Thu