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SubjectRe: [PATCH v2 00/22] clk: at91: Rework DT bindings
Date
Quoting Alexandre Belloni (2018-10-16 07:21:38)
> This is the promised rework of the at91 PMC clocks driver. It is mainly
> necessary to remove the DTC warnings but it also complies with the CCF
> rule that there should be one node per controller instead of one node
> per clock.
>
> This only handles the PMC, I'm planning to also rework the SCKC bindings
> later (without breaking the DT ABI).
>
> The series is based on top of v4.19-rc1.
>
> The first two patches are actually fixes and may be considered for this
> cycle.
>
> I'll take the device tree changes through the at91 tree as DT backward
> compatibility is working.
>

I get the following warnings and errors from my auto checker script:

ERROR: need consistent spacing around '+' (ctx:WxV)
#167: FILE: drivers/clk/at91/sama5d4.c:137:
+ sama5d4_pmc = pmc_data_allocate(PMC_MCK2 +1,
^

drivers/clk/at91/clk-i2s-mux.c:49:15: warning: symbol 'at91_clk_i2s_mux_register' was not declared. Should it be static?
drivers/clk/at91/clk-audio-pll.c:447:15: warning: symbol 'at91_clk_register_audio_pll_frac' was not declared. Should it be static?
drivers/clk/at91/clk-audio-pll.c:477:15: warning: symbol 'at91_clk_register_audio_pll_pad' was not declared. Should it be static?
drivers/clk/at91/clk-audio-pll.c:508:15: warning: symbol 'at91_clk_register_audio_pll_pmc' was not declared. Should it be static?
drivers/clk/at91/sama5d4.c:123 sama5d4_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/sama5d4.c:129 sama5d4_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/sama5d2.c:140 sama5d2_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/sama5d2.c:146 sama5d2_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9x5.c:132 at91sam9x5_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9x5.c:138 at91sam9x5_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9rl.c:76 at91sam9rl_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9rl.c:82 at91sam9rl_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9260.c:341 at91sam926x_pmc_setup() warn: unsigned 'i' is never less than zero.
drivers/clk/at91/at91sam9260.c:347 at91sam926x_pmc_setup() warn: unsigned 'i' is never less than zero.

I fixed them with the below patch, that I'll squash into the right
place. Things look good!

diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
index 49aeee6c31a6..b1af5a395423 100644
--- a/drivers/clk/at91/at91sam9260.c
+++ b/drivers/clk/at91/at91sam9260.c
@@ -334,7 +334,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
const char *slck_name;
struct regmap *regmap;
struct clk_hw *hw;
- unsigned int i;
+ int i;
bool bypass;

i = of_property_match_string(np, "clock-names", "slow_xtal");
diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
index 5532fba5825b..5aeef68b4bdd 100644
--- a/drivers/clk/at91/at91sam9rl.c
+++ b/drivers/clk/at91/at91sam9rl.c
@@ -70,7 +70,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
const char *parent_names[6];
struct regmap *regmap;
struct clk_hw *hw;
- unsigned int i;
+ int i;

i = of_property_match_string(np, "clock-names", "slow_clk");
if (i < 0)
diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 3cdf227ce159..2fe225a697df 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -125,7 +125,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
const char *parent_names[6];
struct regmap *regmap;
struct clk_hw *hw;
- unsigned int i;
+ int i;
bool bypass;

i = of_property_match_string(np, "clock-names", "slow_clk");
diff --git a/drivers/clk/at91/clk-audio-pll.c b/drivers/clk/at91/clk-audio-pll.c
index 96e3c6405351..36d77146a3bd 100644
--- a/drivers/clk/at91/clk-audio-pll.c
+++ b/drivers/clk/at91/clk-audio-pll.c
@@ -43,6 +43,8 @@
#include <linux/regmap.h>
#include <linux/slab.h>

+#include "pmc.h"
+
#define AUDIO_PLL_DIV_FRAC BIT(22)
#define AUDIO_PLL_ND_MAX (AT91_PMC_AUDIO_PLL_ND_MASK >> \
AT91_PMC_AUDIO_PLL_ND_OFFSET)
diff --git a/drivers/clk/at91/clk-i2s-mux.c b/drivers/clk/at91/clk-i2s-mux.c
index dfdffa5409e6..fe6ce172b8b0 100644
--- a/drivers/clk/at91/clk-i2s-mux.c
+++ b/drivers/clk/at91/clk-i2s-mux.c
@@ -14,6 +14,8 @@

#include <soc/at91/atmel-sfr.h>

+#include "pmc.h"
+
struct clk_i2s_mux {
struct clk_hw hw;
struct regmap *regmap;
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 07f1f1d613ff..d69ad96fe988 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -133,7 +133,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
const char *parent_names[6];
struct regmap *regmap, *regmap_sfr;
struct clk_hw *hw;
- unsigned int i;
+ int i;
bool bypass;

i = of_property_match_string(np, "clock-names", "slow_clk");
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 64b9f438f73b..e358be7f6c8d 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -116,7 +116,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
const char *parent_names[5];
struct regmap *regmap;
struct clk_hw *hw;
- unsigned int i;
+ int i;
bool bypass;

i = of_property_match_string(np, "clock-names", "slow_clk");
@@ -134,7 +134,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;

- sama5d4_pmc = pmc_data_allocate(PMC_MCK2 +1,
+ sama5d4_pmc = pmc_data_allocate(PMC_MCK2 + 1,
nck(sama5d4_systemck),
nck(sama5d4_periph32ck), 0);
if (!sama5d4_pmc)
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