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GET /api/patches/813343/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 813343,
    "url": "http://patchwork.ozlabs.org/api/patches/813343/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1505299969-13329-1-git-send-email-david.wu@rock-chips.com/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api",
        "name": "U-Boot",
        "link_name": "uboot",
        "list_id": "u-boot.lists.denx.de",
        "list_email": "u-boot@lists.denx.de",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1505299969-13329-1-git-send-email-david.wu@rock-chips.com>",
    "list_archive_url": null,
    "date": "2017-09-13T10:52:49",
    "name": "[U-Boot,5/8] clk: rockchip: Add rk3328 Saradc clock support",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "37842c5657b133ae6918f4d314fd7defb27522f2",
    "submitter": {
        "id": 68083,
        "url": "http://patchwork.ozlabs.org/api/people/68083/?format=api",
        "name": "David Wu",
        "email": "david.wu@rock-chips.com"
    },
    "delegate": {
        "id": 69486,
        "url": "http://patchwork.ozlabs.org/api/users/69486/?format=api",
        "username": "ptomsich",
        "first_name": "Philipp",
        "last_name": "Tomsich",
        "email": "philipp.tomsich@theobroma-systems.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1505299969-13329-1-git-send-email-david.wu@rock-chips.com/mbox/",
    "series": [
        {
            "id": 2866,
            "url": "http://patchwork.ozlabs.org/api/series/2866/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=2866",
            "date": "2017-09-13T10:09:31",
            "name": "Add rockchip Saradc support",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/2866/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/813343/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/813343/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<u-boot-bounces@lists.denx.de>",
        "X-Original-To": "incoming@patchwork.ozlabs.org",
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            "from lists.denx.de (dione.denx.de [81.169.180.215])\n\tby ozlabs.org (Postfix) with ESMTP id 3xsdq00yX0z9sBW\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 13 Sep 2017 20:55:08 +1000 (AEST)",
            "by lists.denx.de (Postfix, from userid 105)\n\tid D1E92C226EC; Wed, 13 Sep 2017 10:54:19 +0000 (UTC)",
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            "from david.wu?rock-chips.com (unknown [192.168.167.225])\n\tby lucky1.263xmail.com (Postfix) with ESMTP id 3EF528FAE7;\n\tWed, 13 Sep 2017 18:53:31 +0800 (CST)",
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        ],
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        "X-263anti-spam": "KSV:0;",
        "X-MAIL-GRAY": "1",
        "X-MAIL-DELIVERY": "0",
        "X-KSVirus-check": "0",
        "X-ABS-CHECKED": "4",
        "X-RL-SENDER": "david.wu@rock-chips.com",
        "X-FST-TO": "sjg@chromium.org",
        "X-SENDER-IP": "58.22.7.114",
        "X-LOGIN-NAME": "david.wu@rock-chips.com",
        "X-UNIQUE-TAG": "<88eeaa8984978d9e15fb9984a78e8e38>",
        "X-ATTACHMENT-NUM": "0",
        "X-SENDER": "wdc@rock-chips.com",
        "X-DNS-TYPE": "0",
        "From": "David Wu <david.wu@rock-chips.com>",
        "To": "sjg@chromium.org,\n\tphilipp.tomsich@theobroma-systems.com",
        "Date": "Wed, 13 Sep 2017 18:52:49 +0800",
        "Message-Id": "<1505299969-13329-1-git-send-email-david.wu@rock-chips.com>",
        "X-Mailer": "git-send-email 2.7.4",
        "In-Reply-To": "<1505297379-12638-1-git-send-email-david.wu@rock-chips.com>",
        "References": "<1505297379-12638-1-git-send-email-david.wu@rock-chips.com>",
        "Cc": "huangtao@rock-chips.com, u-boot@lists.denx.de, zhangqing@rock-chips.com, \n\tlinux-rockchip@lists.infradead.org, p.marczak@samsung.com,\n\tDavid Wu <david.wu@rock-chips.com>, andy.yan@rock-chips.com,\n\tchenjh@rock-chips.com",
        "Subject": "[U-Boot] [PATCH 5/8] clk: rockchip: Add rk3328 Saradc clock support",
        "X-BeenThere": "u-boot@lists.denx.de",
        "X-Mailman-Version": "2.1.18",
        "Precedence": "list",
        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
        "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>",
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        "Errors-To": "u-boot-bounces@lists.denx.de",
        "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>"
    },
    "content": "The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).\nSaradc integer divider control register is 10-bits width.\n\nSigned-off-by: David Wu <david.wu@rock-chips.com>\n---\n drivers/clk/rockchip/clk_rk3328.c | 37 +++++++++++++++++++++++++++++++++++++\n 1 file changed, 37 insertions(+)",
    "diff": "diff --git a/drivers/clk/rockchip/clk_rk3328.c b/drivers/clk/rockchip/clk_rk3328.c\nindex c3a6650..e1ae7b2 100644\n--- a/drivers/clk/rockchip/clk_rk3328.c\n+++ b/drivers/clk/rockchip/clk_rk3328.c\n@@ -115,6 +115,7 @@ enum {\n \t/* CLKSEL_CON23 */\n \tCLK_SARADC_DIV_CON_SHIFT\t= 0,\n \tCLK_SARADC_DIV_CON_MASK\t\t= 0x3ff << CLK_SARADC_DIV_CON_SHIFT,\n+\tCLK_SARADC_DIV_CON_WIDTH\t= 10,\n \n \t/* CLKSEL_CON24 */\n \tCLK_PWM_PLL_SEL_CPLL\t\t= 0,\n@@ -180,6 +181,11 @@ enum {\n #define PLL_DIV_MIN\t16\n #define PLL_DIV_MAX\t3200\n \n+static inline u32 extract_bits(u32 val, unsigned width, unsigned shift)\n+{\n+\treturn (val >> shift) & ((1 << width) - 1);\n+}\n+\n /*\n  * How to calculate the PLL(from TRM V0.3 Part 1 Page 63):\n  * Formulas also embedded within the Fractional PLL Verilog model:\n@@ -478,6 +484,31 @@ static ulong rk3328_pwm_set_clk(struct rk3328_cru *cru, uint hz)\n \treturn DIV_TO_RATE(GPLL_HZ, div);\n }\n \n+static ulong rk3328_saradc_get_clk(struct rk3328_cru *cru)\n+{\n+\tu32 div, val;\n+\n+\tval = readl(&cru->clksel_con[23]);\n+\tdiv = extract_bits(val, CLK_SARADC_DIV_CON_WIDTH,\n+\t\t\t   CLK_SARADC_DIV_CON_SHIFT);\n+\n+\treturn DIV_TO_RATE(OSC_HZ, div);\n+}\n+\n+static ulong rk3328_saradc_set_clk(struct rk3328_cru *cru, uint hz)\n+{\n+\tint src_clk_div;\n+\n+\tsrc_clk_div = DIV_ROUND_UP(OSC_HZ, hz) - 1;\n+\tassert(src_clk_div < 128);\n+\n+\trk_clrsetreg(&cru->clksel_con[23],\n+\t\t     CLK_SARADC_DIV_CON_MASK,\n+\t\t     src_clk_div << CLK_SARADC_DIV_CON_SHIFT);\n+\n+\treturn rk3328_saradc_get_clk(cru);\n+}\n+\n static ulong rk3328_clk_get_rate(struct clk *clk)\n {\n \tstruct rk3328_clk_priv *priv = dev_get_priv(clk->dev);\n@@ -501,6 +532,9 @@ static ulong rk3328_clk_get_rate(struct clk *clk)\n \tcase SCLK_PWM:\n \t\trate = rk3328_pwm_get_clk(priv->cru);\n \t\tbreak;\n+\tcase SCLK_SARADC:\n+\t\trate = rk3328_saradc_get_clk(priv->cru);\n+\t\tbreak;\n \tdefault:\n \t\treturn -ENOENT;\n \t}\n@@ -531,6 +565,9 @@ static ulong rk3328_clk_set_rate(struct clk *clk, ulong rate)\n \tcase SCLK_PWM:\n \t\tret = rk3328_pwm_set_clk(priv->cru, rate);\n \t\tbreak;\n+\tcase SCLK_SARADC:\n+\t\tret = rk3328_saradc_set_clk(priv->cru, rate);\n+\t\tbreak;\n \tdefault:\n \t\treturn -ENOENT;\n \t}\n",
    "prefixes": [
        "U-Boot",
        "5/8"
    ]
}