From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bibby Hsieh Subject: [PATCH 06/10] soc: mediatek: add register device function Date: Tue, 29 Jan 2019 15:32:03 +0800 Message-ID: <1548747128-60136-7-git-send-email-bibby.hsieh@mediatek.com> References: <1548747128-60136-1-git-send-email-bibby.hsieh@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1548747128-60136-1-git-send-email-bibby.hsieh@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Cc: Daniel Kurtz , Sascha Hauer , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, Sascha Hauer , Philipp Zabel , Nicolas Boichat , Bibby Hsieh , YT Shen , Daoyuan Huang , Jiaguang Zhang , Dennis-YC Hsieh , Houlong Wei , ginny.chen@mediatek.com, kendrick.hsu@mediatek.com, Frederic Chen List-Id: linux-mediatek@lists.infradead.org GCE cannot know the register base address, we store the subsys-base address relationship in the device node, and store the relationship by cmdq_register_device function. Signed-off-by: Bibby Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 24 ++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 1 + 2 files changed, 25 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 6e4b85e..6ad997f 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -32,6 +32,30 @@ u8 cmdq_subsys_base_to_id(struct cmdq_base *clt_base, u32 base) } EXPORT_SYMBOL(cmdq_subsys_base_to_id); +struct cmdq_base *cmdq_register_device(struct device *dev) +{ + struct cmdq_base *clt_base; + struct of_phandle_args spec; + u32 idx; + + clt_base = devm_kzalloc(dev, sizeof(*clt_base), GFP_KERNEL); + if (!clt_base) + return NULL; + + /* parse subsys */ + for (idx = 0; idx < ARRAY_SIZE(clt_base->subsys); idx++) { + if (of_parse_phandle_with_args(dev->of_node, "gce-subsys", + "#gce-subsys-cells", idx, &spec)) + break; + clt_base->subsys[idx].base = spec.args[0]; + clt_base->subsys[idx].id = spec.args[1]; + } + clt_base->count = idx; + + return clt_base; +} +EXPORT_SYMBOL(cmdq_register_device); + static void cmdq_client_timeout(struct timer_list *t) { struct cmdq_client *client = from_timer(client, t, timer); diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 0c7a6ee..a1f5eb6 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -138,5 +138,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb, int cmdq_pkt_flush(struct cmdq_pkt *pkt); u8 cmdq_subsys_base_to_id(struct cmdq_base *clt_base, u32 base); +struct cmdq_base *cmdq_register_device(struct device *dev); #endif /* __MTK_CMDQ_H__ */ -- 1.9.1