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authorOlof Johansson <olof@lixom.net>2017-05-19 08:54:47 +0200
committerOlof Johansson <olof@lixom.net>2017-05-19 08:54:47 +0200
commit5252d73756f318f182f2316acd78a6532041414d (patch)
treeb082478fca4f00f599bb2ed1547b2652c2bea155 /drivers/clk/mediatek/clk-mt6797-vdec.c
parenttee: add ARM_SMCCC dependency (diff)
parentLinux 4.12-rc1 (diff)
downloadlinux-5252d73756f318f182f2316acd78a6532041414d.tar.xz
linux-5252d73756f318f182f2316acd78a6532041414d.zip
Merge tag 'v4.12-rc1' into fixes
We've received a few fixes branches with -rc1 as base, but our contents was still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on hat was actually merged. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/clk/mediatek/clk-mt6797-vdec.c')
-rw-r--r--drivers/clk/mediatek/clk-mt6797-vdec.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6797-vdec.c b/drivers/clk/mediatek/clk-mt6797-vdec.c
new file mode 100644
index 000000000000..7c402ca6c0b2
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6797-vdec.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt6797-clk.h>
+
+static const struct mtk_gate_regs vdec0_cg_regs = {
+ .set_ofs = 0x0000,
+ .clr_ofs = 0x0004,
+ .sta_ofs = 0x0000,
+};
+
+static const struct mtk_gate_regs vdec1_cg_regs = {
+ .set_ofs = 0x0008,
+ .clr_ofs = 0x000c,
+ .sta_ofs = 0x0008,
+};
+
+#define GATE_VDEC0(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &vdec0_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr_inv, \
+}
+
+#define GATE_VDEC1(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &vdec1_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr_inv, \
+}
+
+static const struct mtk_gate vdec_clks[] = {
+ GATE_VDEC0(CLK_VDEC_CKEN_ENG, "vdec_cken_eng", "vdec_sel", 8),
+ GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "vdec_sel", 4),
+ GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", 0),
+ GATE_VDEC1(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "mm_sel", 0),
+};
+
+static const struct of_device_id of_match_clk_mt6797_vdec[] = {
+ { .compatible = "mediatek,mt6797-vdecsys", },
+ {}
+};
+
+static int clk_mt6797_vdec_probe(struct platform_device *pdev)
+{
+ struct clk_onecell_data *clk_data;
+ int r;
+ struct device_node *node = pdev->dev.of_node;
+
+ clk_data = mtk_alloc_clk_data(CLK_VDEC_NR);
+
+ mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
+ clk_data);
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ dev_err(&pdev->dev,
+ "could not register clock provider: %s: %d\n",
+ pdev->name, r);
+
+ return r;
+}
+
+static struct platform_driver clk_mt6797_vdec_drv = {
+ .probe = clk_mt6797_vdec_probe,
+ .driver = {
+ .name = "clk-mt6797-vdec",
+ .of_match_table = of_match_clk_mt6797_vdec,
+ },
+};
+
+builtin_platform_driver(clk_mt6797_vdec_drv);