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Russell King (Oracle)
315bab9411
Add documentation covering stmmac_clk, pclk, clk_ptp_ref and clk_tx_i in the hope that this will help understand what each of these clocks are for. There is confusion around stmmac_clk and pclk which can't be easily resolved today as the Imagination Technologies Pistachio board that pclk was introduced for has no public documentation and is likely now obsolete. So the origins of pclk are lost to the winds of time. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com> Link: https://patch.msgid.link/E1vzX5Z-0000000CVsb-1XTm@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>