balena-allwinner/layers/meta-balena-allwinner/recipes-kernel/linux/linux-mainline/armbian/0083-clk-sunxi-ng-Add-maximum-rate-constraint-to-NM-PLLs.patch
Vicentiu Galanopulo 7d5f1dbda1 recipes-kernel/linux: Remove unused patches and householding
Some patches were part of other linux-mainline
kernel versions but are not anymore part of the
current 4.19.76.

Move 0001-Enable-uart3-for-NanoPi-Neo-Air-used-by-BT.patch
in linux-mainline_4.19.76.bbappend to avoid error
patching file arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
Hunk #2 FAILED at 162.
1 out of 2 hunks FAILED -- rejects in file arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts

Place all patches from Armbian in a separate directory and do all the Balena specific
operations in linux-mainline_%.bbappend only.

Changelog-entry: Remove unused patches and cleanup
Signed-off-by: Vicentiu Galanopulo <vicentiu@balena.io>
2019-10-14 09:43:01 +02:00

86 lines
2.6 KiB
Diff

From a977683c5364eb855601b152e20bd7b45f157874 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Thu, 9 Aug 2018 18:52:13 +0200
Subject: [PATCH 083/146] clk: sunxi-ng: Add maximum rate constraint to NM PLLs
On some NM PLLs, frequency can be set above PLL working range.
Add a constraint for maximum supported rate. This way, drivers can
specify which is maximum allowed rate for PLL.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
drivers/clk/sunxi-ng/ccu_nm.c | 7 +++++++
drivers/clk/sunxi-ng/ccu_nm.h | 30 ++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+)
diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c
index 4e2073307f34..6fe3c14f7b2d 100644
--- a/drivers/clk/sunxi-ng/ccu_nm.c
+++ b/drivers/clk/sunxi-ng/ccu_nm.c
@@ -124,6 +124,13 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate,
return rate;
}
+ if (nm->max_rate && rate > nm->max_rate) {
+ rate = nm->max_rate;
+ if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
+ rate /= nm->fixed_post_div;
+ return rate;
+ }
+
if (ccu_frac_helper_has_rate(&nm->common, &nm->frac, rate)) {
if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
rate /= nm->fixed_post_div;
diff --git a/drivers/clk/sunxi-ng/ccu_nm.h b/drivers/clk/sunxi-ng/ccu_nm.h
index 1d8b459c50b7..de232f2199a6 100644
--- a/drivers/clk/sunxi-ng/ccu_nm.h
+++ b/drivers/clk/sunxi-ng/ccu_nm.h
@@ -38,6 +38,7 @@ struct ccu_nm {
unsigned int fixed_post_div;
unsigned int min_rate;
+ unsigned int max_rate;
struct ccu_common common;
};
@@ -115,6 +116,35 @@ struct ccu_nm {
}, \
}
+#define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(_struct, _name, \
+ _parent, _reg, \
+ _min_rate, _max_rate, \
+ _nshift, _nwidth, \
+ _mshift, _mwidth, \
+ _frac_en, _frac_sel, \
+ _frac_rate_0, \
+ _frac_rate_1, \
+ _gate, _lock, _flags) \
+ struct ccu_nm _struct = { \
+ .enable = _gate, \
+ .lock = _lock, \
+ .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \
+ .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \
+ .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \
+ _frac_rate_0, \
+ _frac_rate_1), \
+ .min_rate = _min_rate, \
+ .max_rate = _max_rate, \
+ .common = { \
+ .reg = _reg, \
+ .features = CCU_FEATURE_FRACTIONAL, \
+ .hw.init = CLK_HW_INIT(_name, \
+ _parent, \
+ &ccu_nm_ops, \
+ _flags), \
+ }, \
+ }
+
#define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \
_nshift, _nwidth, \
_mshift, _mwidth, \
--
2.17.1