From fce21ae4ccfcee0c28fb18f5507e145fb0b02dec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 22 Mar 2017 21:09:00 +0100 Subject: brcm2708: rename all patches from raspberrypi git tree to use 950 prefix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Right now all brcm2708 patches are extracted from the non-mainline raspberrypi/linux git tree. Many of them are hacks and/or are unneeded in LEDE. Raspberry Pi is getting better and better mainline support so it would be nice to finally start maintaining patches in a cleaner way: 1) Backport patches accepted in upstream tree 2) Start using upstream drivers 3) Pick only these patches that are needed for more complete support Handling above tasks requires grouping patches - ideally using the same prefixes as generic ones. It means we should rename existing patches to use some high prefix. This will allow e.g. use 0xx for backported code. Signed-off-by: Rafał Miłecki Acked-by: Florian Fainelli Acked-by: Stijn Tintel --- ...-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.9/950-0021-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch (limited to 'target/linux/brcm2708/patches-4.9/950-0021-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch') diff --git a/target/linux/brcm2708/patches-4.9/950-0021-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch b/target/linux/brcm2708/patches-4.9/950-0021-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch new file mode 100644 index 0000000000..dfa312bc37 --- /dev/null +++ b/target/linux/brcm2708/patches-4.9/950-0021-clk-bcm2835-Mark-GPIO-clocks-enabled-at-boot-as-crit.patch @@ -0,0 +1,37 @@ +From 599e7165ec6477139dae4f32a12e8d49d5dd8859 Mon Sep 17 00:00:00 2001 +From: Eric Anholt +Date: Mon, 9 May 2016 17:28:18 -0700 +Subject: [PATCH] clk: bcm2835: Mark GPIO clocks enabled at boot as critical. + +These divide off of PLLD_PER and are used for the ethernet and wifi +PHYs source PLLs. Neither of them is currently represented by a phy +device that would grab the clock for us. + +This keeps other drivers from killing the networking PHYs when they +disable their own clocks and trigger PLLD_PER's refcount going to 0. + +v2: Skip marking as critical if they aren't on at boot. + +Signed-off-by: Eric Anholt +--- + drivers/clk/bcm/clk-bcm2835.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +--- a/drivers/clk/bcm/clk-bcm2835.c ++++ b/drivers/clk/bcm/clk-bcm2835.c +@@ -1262,6 +1262,15 @@ static struct clk_hw *bcm2835_register_c + init.name = data->name; + init.flags = data->flags | CLK_IGNORE_UNUSED; + ++ /* ++ * Some GPIO clocks for ethernet/wifi PLLs are marked as ++ * critical (since some platforms use them), but if the ++ * firmware didn't have them turned on then they clearly ++ * aren't actually critical. ++ */ ++ if ((cprman_read(cprman, data->ctl_reg) & CM_ENABLE) == 0) ++ init.flags &= ~CLK_IS_CRITICAL; ++ + if (data->is_vpu_clock) { + init.ops = &bcm2835_vpu_clock_clk_ops; + } else { -- cgit v1.2.3