linux-kernel - [RFC/RFT v2 04/14] clk: meson: eeclk: add setup callback

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Message-Id: <20190626090632.7540-5-narmstrong@baylibre.com>
Date:   Wed, 26 Jun 2019 11:06:22 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     jbrunet@...libre.com, khilman@...libre.com
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, martin.blumenstingl@...glemail.com,
        linux-gpio@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [RFC/RFT v2 04/14] clk: meson: eeclk: add setup callback

Add a setup() callback in the eeclk structure, to call an optional
call() function at end of eeclk probe to setup clocks.

It's used for the G12A clock controller to setup the CPU clock notifiers.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 drivers/clk/meson/meson-eeclk.c | 6 ++++++
 drivers/clk/meson/meson-eeclk.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/clk/meson/meson-eeclk.c b/drivers/clk/meson/meson-eeclk.c
index 6ba2094be257..81fd2abcd173 100644
--- a/drivers/clk/meson/meson-eeclk.c
+++ b/drivers/clk/meson/meson-eeclk.c
@@ -61,6 +61,12 @@ int meson_eeclkc_probe(struct platform_device *pdev)
 		}
 	}
 
+	if (data->setup) {
+		ret = data->setup(pdev);
+		if (ret)
+			return ret;
+	}
+
 	return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
 					   data->hw_onecell_data);
 }
diff --git a/drivers/clk/meson/meson-eeclk.h b/drivers/clk/meson/meson-eeclk.h
index 9ab5d6fa7ccb..7fdf424f71a6 100644
--- a/drivers/clk/meson/meson-eeclk.h
+++ b/drivers/clk/meson/meson-eeclk.h
@@ -20,6 +20,7 @@ struct meson_eeclkc_data {
 	const struct reg_sequence	*init_regs;
 	unsigned int			init_count;
 	struct clk_hw_onecell_data	*hw_onecell_data;
+	int				(*setup)(struct platform_device *pdev);
 };
 
 int meson_eeclkc_probe(struct platform_device *pdev);
-- 
2.21.0