openwrt/target/linux/bcm27xx/patches-4.19/950-0770-raspberrypi-cpufreq-Only-report-integer-pll-divisor-.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

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1.2 KiB
Diff

From 1c038a58f4183602fc1699d68b21f5e22a12176d Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Fri, 13 Sep 2019 13:45:11 +0100
Subject: [PATCH] raspberrypi-cpufreq: Only report integer pll divisor
frequencies
---
drivers/cpufreq/raspberrypi-cpufreq.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/cpufreq/raspberrypi-cpufreq.c
+++ b/drivers/cpufreq/raspberrypi-cpufreq.c
@@ -8,6 +8,7 @@
#include <linux/clk.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
+#include <linux/math64.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
@@ -22,6 +23,7 @@ static int raspberrypi_cpufreq_probe(str
unsigned long min, max;
unsigned long rate;
struct clk *clk;
+ int div;
int ret;
cpu_dev = get_cpu_device(0);
@@ -44,7 +46,10 @@ static int raspberrypi_cpufreq_probe(str
max = roundup(clk_round_rate(clk, ULONG_MAX), RASPBERRYPI_FREQ_INTERVAL);
clk_put(clk);
- for (rate = min; rate <= max; rate += RASPBERRYPI_FREQ_INTERVAL) {
+ for (div = 2; ; div++) {
+ rate = div_u64((u64)max * 2, div);
+ if (rate < min)
+ break;
ret = dev_pm_opp_add(cpu_dev, rate, 0);
if (ret)
goto remove_opp;