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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-20 19:07:28 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-20 19:07:28 -1000
commitb3454ce0b2c8a56e760e6baa88ed10278585072b (patch)
treea4147f4c58fe568d4f87d31b3a9f79bac93e9146
parent93413c849f1fd2ad294320c6eb140b95bf153b8a (diff)
parentd0031e6fbed955ff8d5f5bbc8fe7382482559cec (diff)
downloadlinux-b3454ce0b2c8a56e760e6baa88ed10278585072b.tar.bz2
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd: "Three clk driver fixes to close out the release - Fix a divider calculation breaking boot on Broadcom bcm2835 - Fix HDMI output on Tanix TX6 mini board by reverting a patch - Fix clk_set_rate_range() calls on at91 by considering the range while calculating the divisor" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: at91: generated: consider range when calculating best rate Revert "clk: sunxi-ng: sun6i-rtc: Add support for H6" clk: bcm2835: fix bcm2835_clock_choose_div
-rw-r--r--drivers/clk/at91/clk-generated.c4
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c1
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun6i-rtc.c15
-rw-r--r--drivers/rtc/rtc-sun6i.c17
4 files changed, 22 insertions, 15 deletions
diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index 23cc8297ec4c..d429ba52a719 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -117,6 +117,10 @@ static void clk_generated_best_diff(struct clk_rate_request *req,
tmp_rate = parent_rate;
else
tmp_rate = parent_rate / div;
+
+ if (tmp_rate < req->min_rate || tmp_rate > req->max_rate)
+ return;
+
tmp_diff = abs(req->rate - tmp_rate);
if (*best_diff < 0 || *best_diff >= tmp_diff) {
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 3ad20e75fd23..48a1eb9f2d55 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -941,6 +941,7 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
u64 temp = (u64)parent_rate << CM_DIV_FRAC_BITS;
u32 div, mindiv, maxdiv;
+ do_div(temp, rate);
div = temp;
div &= ~unused_frac_mask;
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
index 2f3ddc908ebd..d65398497d5f 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
@@ -298,10 +298,6 @@ static const struct sunxi_ccu_desc sun6i_rtc_ccu_desc = {
.hw_clks = &sun6i_rtc_ccu_hw_clks,
};
-static const struct clk_parent_data sun50i_h6_osc32k_fanout_parents[] = {
- { .hw = &osc32k_clk.common.hw },
-};
-
static const struct clk_parent_data sun50i_h616_osc32k_fanout_parents[] = {
{ .hw = &osc32k_clk.common.hw },
{ .fw_name = "pll-32k" },
@@ -314,13 +310,6 @@ static const struct clk_parent_data sun50i_r329_osc32k_fanout_parents[] = {
{ .hw = &osc24M_32k_clk.common.hw }
};
-static const struct sun6i_rtc_match_data sun50i_h6_rtc_ccu_data = {
- .have_ext_osc32k = true,
- .have_iosc_calibration = true,
- .osc32k_fanout_parents = sun50i_h6_osc32k_fanout_parents,
- .osc32k_fanout_nparents = ARRAY_SIZE(sun50i_h6_osc32k_fanout_parents),
-};
-
static const struct sun6i_rtc_match_data sun50i_h616_rtc_ccu_data = {
.have_iosc_calibration = true,
.rtc_32k_single_parent = true,
@@ -336,10 +325,6 @@ static const struct sun6i_rtc_match_data sun50i_r329_rtc_ccu_data = {
static const struct of_device_id sun6i_rtc_ccu_match[] = {
{
- .compatible = "allwinner,sun50i-h6-rtc",
- .data = &sun50i_h6_rtc_ccu_data,
- },
- {
.compatible = "allwinner,sun50i-h616-rtc",
.data = &sun50i_h616_rtc_ccu_data,
},
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 5b3e4da63406..5252ce4cbda4 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -370,6 +370,23 @@ CLK_OF_DECLARE_DRIVER(sun8i_h3_rtc_clk, "allwinner,sun8i-h3-rtc",
CLK_OF_DECLARE_DRIVER(sun50i_h5_rtc_clk, "allwinner,sun50i-h5-rtc",
sun8i_h3_rtc_clk_init);
+static const struct sun6i_rtc_clk_data sun50i_h6_rtc_data = {
+ .rc_osc_rate = 16000000,
+ .fixed_prescaler = 32,
+ .has_prescaler = 1,
+ .has_out_clk = 1,
+ .export_iosc = 1,
+ .has_losc_en = 1,
+ .has_auto_swt = 1,
+};
+
+static void __init sun50i_h6_rtc_clk_init(struct device_node *node)
+{
+ sun6i_rtc_clk_init(node, &sun50i_h6_rtc_data);
+}
+CLK_OF_DECLARE_DRIVER(sun50i_h6_rtc_clk, "allwinner,sun50i-h6-rtc",
+ sun50i_h6_rtc_clk_init);
+
/*
* The R40 user manual is self-conflicting on whether the prescaler is
* fixed or configurable. The clock diagram shows it as fixed, but there