RE:Re: [PATCH v3 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-28 Thread Richard Zhu
l-linux-imx ; > linux-arm-ker...@lists.infradead.org; linux-kernel@vger.kernel.org; > ker...@pengutronix.de > Subject: Re: [PATCH v3 1/3] dt-bindings: imx6q-pcie: add one regulator > used to power up pcie phy > Am Donnerstag, dem 25.03.2021 um 16:44 +0800 schrieb Richard Zhu: >

Re: [PATCH v3 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-26 Thread Lucas Stach
Am Donnerstag, dem 25.03.2021 um 16:44 +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 VREG_BYPASS

[PATCH v3 1/3] dt-bindings: imx6q-pcie: add one regulator used to power up pcie phy

2021-03-25 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.