Performance oriented customized Linux kernel based on the mainline kernel.
f7f9abc5ea
The 'fsl,refclk-pad-mode' DT property used to select clock source for PCIe PHY can have either of three values, IMX8_PCIE_REFCLK_PAD_INPUT, IMX8_PCIE_REFCLK_PAD_OUTPUT, IMX8_PCIE_REFCLK_PAD_UNUSED. The first two options are handled correctly by the driver, the last one is not, this patch implements support for the last option. The IMX8_PCIE_REFCLK_PAD_INPUT means PCIE_RESREF is PHY clock input, the IMX8_PCIE_REFCLK_PAD_OUTPUT means PHY clock are sourced from SoC internal PLL and output to PCIE_RESREF external IO pin. The last IMX8_PCIE_REFCLK_PAD_UNUSED is a combination of previous two, PHY clock are sourced from SoC internal PLL and not output anywhere. Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@denx.de> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Richard Zhu <hongxing.zhu@nxp.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Vinod Koul <vkoul@kernel.org> Cc: linux-arm-kernel@lists.infradead.org To: linux-phy@lists.infradead.org Link: https://lore.kernel.org/r/20220413140710.10074-1-marex@denx.de Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.