firmware: tegra: Add helper to check for supported MRQs (d78b5bde) · Commits · 戴 / test

drivers/firmware/tegra/bpmp.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -470,6 +470,31 @@ unlock:
		}
		EXPORT_SYMBOL_GPL(tegra_bpmp_free_mrq);

		bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq)
		{
		struct mrq_query_abi_request req = { .mrq = cpu_to_le32(mrq) };
		struct mrq_query_abi_response resp;
		struct tegra_bpmp_message msg = {
		.mrq = MRQ_QUERY_ABI,
		.tx = {
		.data = &req,
		.size = sizeof(req),
		},
		.rx = {
		.data = &resp,
		.size = sizeof(resp),
		},
		};
		int ret;

		ret = tegra_bpmp_transfer(bpmp, &msg);
		if (ret \|\| msg.rx.ret)
		return false;

		return resp.status == 0;
		}
		EXPORT_SYMBOL_GPL(tegra_bpmp_mrq_is_supported);

		static void tegra_bpmp_mrq_handle_ping(unsigned int mrq,
		struct tegra_bpmp_channel *channel,
		void *data)

+7 −0

Original line number	Diff line number	Diff line
		@@ -129,6 +129,7 @@ int tegra_bpmp_request_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
		tegra_bpmp_mrq_handler_t handler, void *data);
		void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp, unsigned int mrq,
		void *data);
		bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp, unsigned int mrq);
		#else
		static inline struct tegra_bpmp tegra_bpmp_get(struct device dev)
		{
		@@ -164,6 +165,12 @@ static inline void tegra_bpmp_free_mrq(struct tegra_bpmp *bpmp,
		unsigned int mrq, void *data)
		{
		}

		static inline bool tegra_bpmp_mrq_is_supported(struct tegra_bpmp *bpmp,
		unsigned int mrq)
		{
		return false;
		}
		#endif

		#if IS_ENABLED(CONFIG_CLK_TEGRA_BPMP)