tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0cb552aa97843f24549ce808883494138471c16b
commit: 6f5178acf63614f2ee27450b2ab4d4980a698161 riscv: Add the Allwinner SoC family Kconfig option
date: 12 months ago
:::::: branch date: 3 hours ago
:::::: commit date: 12 months ago
config: riscv-randconfig-r042-20230805 (https://download.01.org/0day-ci/archive/20240111/[email protected]/config)
compiler: riscv64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20240111/[email protected]/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/
All warnings (new ones prefixed by >>):
>> drivers/clk/sunxi/clk-a20-gmac.c:43: warning: expecting prototype for sun7i_a20_gmac_clk_setup(). Prototype was for SUN7I_A20_GMAC_GPIT() instead
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>> drivers/clk/sunxi/clk-usb.c:80: warning: expecting prototype for sunxi_usb_clk_setup(). Prototype was for SUNXI_USB_MAX_SIZE() instead
--
>> drivers/clk/sunxi/clk-sun9i-cpus.c:25: warning: expecting prototype for sun9i_a80_cpus_clk_setup(). Prototype was for SUN9I_CPUS_MAX_PARENTS() instead
vim +43 drivers/clk/sunxi/clk-a20-gmac.c
59cb10e32a6053 Maxime Ripard 2014-05-09 17
59cb10e32a6053 Maxime Ripard 2014-05-09 18 /**
59cb10e32a6053 Maxime Ripard 2014-05-09 19 * sun7i_a20_gmac_clk_setup - Setup function for A20/A31 GMAC clock module
59cb10e32a6053 Maxime Ripard 2014-05-09 20 *
59cb10e32a6053 Maxime Ripard 2014-05-09 21 * This clock looks something like this
59cb10e32a6053 Maxime Ripard 2014-05-09 22 * ________________________
59cb10e32a6053 Maxime Ripard 2014-05-09 23 * MII TX clock from PHY >-----|___________ _________|----> to GMAC core
59cb10e32a6053 Maxime Ripard 2014-05-09 24 * GMAC Int. RGMII TX clk >----|___________\__/__gate---|----> to PHY
59cb10e32a6053 Maxime Ripard 2014-05-09 25 * Ext. 125MHz RGMII TX clk >--|__divider__/ |
59cb10e32a6053 Maxime Ripard 2014-05-09 26 * |________________________|
59cb10e32a6053 Maxime Ripard 2014-05-09 27 *
59cb10e32a6053 Maxime Ripard 2014-05-09 28 * The external 125 MHz reference is optional, i.e. GMAC can use its
59cb10e32a6053 Maxime Ripard 2014-05-09 29 * internal TX clock just fine. The A31 GMAC clock module does not have
59cb10e32a6053 Maxime Ripard 2014-05-09 30 * the divider controls for the external reference.
59cb10e32a6053 Maxime Ripard 2014-05-09 31 *
59cb10e32a6053 Maxime Ripard 2014-05-09 32 * To keep it simple, let the GMAC use either the MII TX clock for MII mode,
59cb10e32a6053 Maxime Ripard 2014-05-09 33 * and its internal TX clock for GMII and RGMII modes. The GMAC driver should
59cb10e32a6053 Maxime Ripard 2014-05-09 34 * select the appropriate source and gate/ungate the output to the PHY.
59cb10e32a6053 Maxime Ripard 2014-05-09 35 *
59cb10e32a6053 Maxime Ripard 2014-05-09 36 * Only the GMAC should use this clock. Altering the clock so that it doesn't
59cb10e32a6053 Maxime Ripard 2014-05-09 37 * match the GMAC's operation parameters will result in the GMAC not being
59cb10e32a6053 Maxime Ripard 2014-05-09 38 * able to send traffic out. The GMAC driver should set the clock rate and
59cb10e32a6053 Maxime Ripard 2014-05-09 39 * enable/disable this clock to configure the required state. The clock
59cb10e32a6053 Maxime Ripard 2014-05-09 40 * driver then responds by auto-reparenting the clock.
59cb10e32a6053 Maxime Ripard 2014-05-09 41 */
59cb10e32a6053 Maxime Ripard 2014-05-09 42
59cb10e32a6053 Maxime Ripard 2014-05-09 @43 #define SUN7I_A20_GMAC_GPIT 2
59cb10e32a6053 Maxime Ripard 2014-05-09 44 #define SUN7I_A20_GMAC_MASK 0x3
59cb10e32a6053 Maxime Ripard 2014-05-09 45 #define SUN7I_A20_GMAC_PARENTS 2
59cb10e32a6053 Maxime Ripard 2014-05-09 46
:::::: The code at line 43 was first introduced by commit
:::::: 59cb10e32a60533865e26dc9a8303306ba972a70 clk: sunxi: Move the GMAC clock to a file of its own
:::::: TO: Maxime Ripard <[email protected]>
:::::: CC: Maxime Ripard <[email protected]>
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