4 Commits

Author	SHA1	Message	Date
Amit Daniel Kachhap	7a8655e19b	clk: scmi: Fix the rounding of clock rate ... This fix rounds the clock rate properly by using quotient and not remainder in the calculation. This issue was found while testing HDMI in the Juno platform. Fixes: 6d6a1d82ea ("clk: add support for clocks provided by SCMI") Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>	2018-08-02 13:43:48 -07:00
Kees Cook	0ed2dd03b9	treewide: Use struct_size() for devm_kmalloc() and friends ... Replaces open-coded struct size calculations with struct_size() for devm_*, f2fs_*, and sock_* allocations. Automatically generated (and manually adjusted) from the following Coccinelle script: // Direct reference to struct field. @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP) + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP) // mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL); @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP) + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP) // Same pattern, but can't trivially locate the trailing element name, // or variable name. @@ identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc"; expression HANDLE; expression GFP; expression SOMETHING, COUNT, ELEMENT; @@ - alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP) + alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP) Signed-off-by: Kees Cook <keescook@chromium.org>	2018-06-06 11:15:43 -07:00
Sudeep Holla	7f9badfcef	clk: scmi: use devm_of_clk_add_hw_provider() API and drop scmi_clocks_remove ... Commit aa795c41d9 ("clk: Add devm_of_clk_add_hw_provider()/del_provider() APIs") adds devm_of_clk_add_hw_provider which takes care of deleting the clock provider when the clock providers device is removed. This patch makes use of devm_of_clk_add_hw_provider() instead of of_clk_add_hw_provider() so that we can eliminate the need of explicit scmi_clocks_remove for just doing of_clk_del_provider() Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2018-03-20 16:23:26 +00:00
Sudeep Holla	6d6a1d82ea	clk: add support for clocks provided by SCMI ... On some ARM based systems, a separate Cortex-M based System Control Processor(SCP) provides the overall power, clock, reset and system control. System Control and Management Interface(SCMI) Message Protocol is defined for the communication between the Application Cores(AP) and the SCP. This patch adds support for the clocks provided by SCP using SCMI protocol. Cc: linux-clk@vger.kernel.org Cc: Michael Turquette <mturquette@baylibre.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2018-02-28 16:37:57 +00:00