From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Stephen Boyd <sboyd@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>,
Michael Turquette <mturquette@baylibre.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH v2 09/22] clk: at91: add new DT lookup function
Date: Tue, 16 Oct 2018 16:21:47 +0200 [thread overview]
Message-ID: <20181016142200.19741-10-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20181016142200.19741-1-alexandre.belloni@bootlin.com>
Add a new DT lookup function to lookup for PMC clocks.
Note that the #ifndef AT91_PMC_MOSCS section will be removed once all the
platforms are converted.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
---
drivers/clk/at91/pmc.c | 34 ++++++++++++++++++++++++++++++++
include/dt-bindings/clock/at91.h | 15 ++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 0f8b3add1b04..db24539d5740 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -19,6 +19,8 @@
#include <asm/proc-fns.h>
+#include <dt-bindings/clock/at91.h>
+
#include "pmc.h"
#define PMC_MAX_IDS 128
@@ -47,6 +49,38 @@ int of_at91_get_clk_range(struct device_node *np, const char *propname,
}
EXPORT_SYMBOL_GPL(of_at91_get_clk_range);
+struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data)
+{
+ unsigned int type = clkspec->args[0];
+ unsigned int idx = clkspec->args[1];
+ struct pmc_data *pmc_data = data;
+
+ switch (type) {
+ case PMC_TYPE_CORE:
+ if (idx < pmc_data->ncore)
+ return pmc_data->chws[idx];
+ break;
+ case PMC_TYPE_SYSTEM:
+ if (idx < pmc_data->nsystem)
+ return pmc_data->shws[idx];
+ break;
+ case PMC_TYPE_PERIPHERAL:
+ if (idx < pmc_data->nperiph)
+ return pmc_data->phws[idx];
+ break;
+ case PMC_TYPE_GCK:
+ if (idx < pmc_data->ngck)
+ return pmc_data->ghws[idx];
+ break;
+ default:
+ break;
+ }
+
+ pr_err("%s: invalid type (%u) or index (%u)\n", __func__, type, idx);
+
+ return ERR_PTR(-EINVAL);
+}
+
void pmc_data_free(struct pmc_data *pmc_data)
{
kfree(pmc_data->chws);
diff --git a/include/dt-bindings/clock/at91.h b/include/dt-bindings/clock/at91.h
index ab3ee241d10c..ed30da28d820 100644
--- a/include/dt-bindings/clock/at91.h
+++ b/include/dt-bindings/clock/at91.h
@@ -9,6 +9,20 @@
#ifndef _DT_BINDINGS_CLK_AT91_H
#define _DT_BINDINGS_CLK_AT91_H
+#define PMC_TYPE_CORE 0
+#define PMC_TYPE_SYSTEM 1
+#define PMC_TYPE_PERIPHERAL 2
+#define PMC_TYPE_GCK 3
+
+#define PMC_SLOW 0
+#define PMC_MCK 1
+#define PMC_UTMI 2
+#define PMC_MAIN 3
+#define PMC_MCK2 4
+#define PMC_I2S0_MUX 5
+#define PMC_I2S1_MUX 6
+
+#ifndef AT91_PMC_MOSCS
#define AT91_PMC_MOSCS 0 /* MOSCS Flag */
#define AT91_PMC_LOCKA 1 /* PLLA Lock */
#define AT91_PMC_LOCKB 2 /* PLLB Lock */
@@ -19,5 +33,6 @@
#define AT91_PMC_MOSCRCS 17 /* Main On-Chip RC */
#define AT91_PMC_CFDEV 18 /* Clock Failure Detector Event */
#define AT91_PMC_GCKRDY 24 /* Generated Clocks */
+#endif
#endif
--
2.19.1
next prev parent reply other threads:[~2018-10-16 14:22 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 14:21 [PATCH v2 00/22] clk: at91: Rework DT bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 01/22] clk: at91: audio-pll: fix audio pmc type Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 02/22] clk: at91: generated: SSCs don't have a gclk Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 03/22] clk: at91: h32mx: separate registration from DT parsing Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 04/22] clk: at91: audio-pll: " Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 05/22] clk: at91: generated: set audio_pll_allowed in at91_clk_register_generated() Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 06/22] clk: at91: allow clock registration from C code Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 07/22] clk: at91: add pmc_data struct and helpers Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 08/22] dt-bindings: clk: at91: Document new PMC binding Alexandre Belloni
2018-10-17 17:49 ` Stephen Boyd
2018-10-16 14:21 ` Alexandre Belloni [this message]
2018-10-17 17:50 ` [PATCH v2 09/22] clk: at91: add new DT lookup function Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 10/22] clk: at91: add sama5d4 pmc driver Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 11/22] clk: at91: add sama5d2 PMC driver Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 12/22] clk: at91: add at91sam9260 " Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 13/22] clk: at91: add at91sam9x5 PMCs driver Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 14/22] clk: at91: add at91sam9rl PMC driver Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 15/22] clk: at91: move DT compatibility code to its own file Alexandre Belloni
2018-10-17 17:50 ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 16/22] ARM: dts: at91: sama5d4: switch to new clock bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 17/22] ARM: dts: at91: sama5d2: switch to new binding Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 18/22] ARM: dts: at91: at91sam9260: switch to new clock bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 19/22] ARM: dts: at91: at91sam9261: " Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 20/22] ARM: dts: at91: at91sam9263: " Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 21/22] ARM: dts: at91: at91sam9x5: " Alexandre Belloni
2018-10-16 14:22 ` [PATCH v2 22/22] ARM: dts: at91: at91sam9rl: " Alexandre Belloni
2018-10-17 16:50 ` [PATCH v2 00/22] clk: at91: Rework DT bindings Stephen Boyd
2018-10-17 17:27 ` Alexandre Belloni
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